Showing 10 of 492 results
We report the first measurements of a complete second-order cumulant matrix of net-charge, net-proton, and net-kaon multiplicity distributions for the first phase of the beam energy scan program at RHIC. This includes the centrality and, for the first time, the pseudorapidity window dependence of both diagonal and off-diagonal cumulants in Au+Au collisions at \sNN~= 7.7-200 GeV. Within the available acceptance of $|\eta|<0.5$, the cumulants grow linearly with the pseudorapidity window. Relative to the corresponding measurements in peripheral collisions, the ratio of off-diagonal over diagonal cumulants in central collisions indicates an excess correlation between net-charge and net-kaon, as well as between net-charge and net-proton. The strength of such excess correlation increases with the collision energy. The correlation between net-proton and net-kaon multiplicity distributions is observed to be negative at \sNN~= 200 GeV and change to positive at the lowest collision energy. Model calculations based on non-thermal (UrQMD) and thermal (HRG) production of hadrons cannot explain the data. These measurements will help map the QCD phase diagram, constrain hadron resonance gas model calculations, and provide new insights on the energy dependence of baryon-strangeness correlations. An erratum has been added to address the issue of self-correlation in the previously considered efficiency correction for off-diagonal cumulant measurement. Previously considered unidentified (net-)charge correlation results ($\sigma^{11}_{Q,p}$ and $\sigma^{11}_{Q,k})$ are now replaced with identified (net-)charge correlation ($\sigma^{11}_{Q^{PID},p}$ and $\sigma^{11}_{Q^{PID},k}$)
The dependence of efficiency corrected second-order diagonal and off-diagonal cumulants on the width of the η-window. The filled and open circles represent 0-5% and 70-80% central collisions respectively. The shaded band represents the systematic uncertainty. The statistical uncertainties are within the marker size and solid lines are UrQMD calculations.
The dependence of efficiency corrected second-order diagonal and off-diagonal cumulants on the width of the η-window. The filled and open circles represent 0-5% and 70-80% central collisions respectively. The shaded band represents the systematic uncertainty. The statistical uncertainties are within the marker size and solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli- sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Error bars are statistical and boxes are systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Error bars are statistical and boxes are systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Beam energy dependence of cumulant ratios (Cp,k,CQ,k and CQ,p; top to bottom) of net-proton, net-kaon and net-charge (identified) for Au+Au collisions at sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV. The bands denote the UrQMD calculations for 0-5% and 70-80% central collisions and the HRG values are denoted by red dotted lines. The Poisson baseline is denoted by black dashed lines. Error bars are statistical and boxes are systematic errors.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of efficiency corrected second-order diagonal cumulants of net-proton, net-kaon and net-pion (top to bottom) of the multiplicity distributions for Au+Au collisions at GeV (left to right) within kinematic range of |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. The boxes represent the systematic error. The statistical error bars are within the marker size. The dashed lines represent scaling predicted by central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal cumulants of net-proton, net-charge and net-kaon for Au+Au colli-sions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The dashed lines represent scaling predicted by the central limit theorem and the solid lines are UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Centrality dependence of second-order off-diagonal to diagonal cumulants ratios of net-proton, identified net-charge and net-kaon for Au+Au collisions at √sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV (left to right) within the kinematic range |η| < 0.5 and 0.4 < pT < 1.6 GeV/c. Bars represent statistical errors and boxes show systematic errors. The solid lines represent the UrQMD calculations.
Beam energy dependence of cumulant ratios (Cp,k,CQ,k and CQ,p; top to bottom) of net-proton, net-kaon and identified net-charge for Au+Au collisions at sNN = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV. The bands denote the UrQMD calculations for 0-5% and 70-80% central collisions and the HRG values are denoted by red dotted lines. The Poisson baseline is denoted by black dashed lines. Bars show statistical errors and boxes show systematic errors.
The extreme temperatures and energy densities generated by ultra-relativistic collisions between heavy nuclei produce a state of matter with surprising fluid properties. Non-central collisions have angular momentum on the order of 1000$\hbar$, and the resulting fluid may have a strong vortical structure that must be understood to properly describe the fluid. It is also of particular interest because the restoration of fundamental symmetries of quantum chromodynamics is expected to produce novel physical effects in the presence of strong vorticity. However, no experimental indications of fluid vorticity in heavy ion collisions have so far been found. Here we present the first measurement of an alignment between the angular momentum of a non-central collision and the spin of emitted particles, revealing that the fluid produced in heavy ion collisions is by far the most vortical system ever observed. We find that $\Lambda$ and $\overline{\Lambda}$ hyperons show a positive polarization of the order of a few percent, consistent with some hydrodynamic predictions. A previous measurement that reported a null result at higher collision energies is seen to be consistent with the trend of our new observations, though with larger statistical uncertainties. These data provide the first experimental access to the vortical structure of the "perfect fluid" created in a heavy ion collision. They should prove valuable in the development of hydrodynamic models that quantitatively connect observations to the theory of the Strong Force. Our results extend the recent discovery of hydrodynamic spin alignment to the subatomic realm.
Lambda and AntiLambda polarization as a function of collision energy. A 0.8% error on the alpha value used in the paper is corrected in this table. Systematic error bars include those associated with particle identification (negligible), uncertainty in the value of the hyperon decay parameter (2%) and reaction plane resolution (2%) and detector efficiency corrections (4%). The dominant systematic error comes from statistical fluctuations of the estimated combinatoric background under the (anti-)$\Lambda$ mass peak.
Lambda and AntiLambda polarization as a function of collision energy calculated using the new $\alpha_\Lambda=0.732$ updated on PDG2020. Systematic error bars include those associated with particle identification (negligible), uncertainty in the value of the hyperon decay parameter (2%) and reaction plane resolution (2%) and detector efficiency corrections (4%). The dominant systematic error comes from statistical fluctuations of the estimated combinatoric background under the (anti-)$\Lambda$ mass peak.
Elliptic flow (v_2) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the Relativistic Heavy Ion Collider at sqrt{s_{NN}}= 7.7--62.4 GeV are presented for three centrality classes. The centrality dependence and the data at sqrt{s_{NN}}= 14.5 GeV are new. Except at the lowest beam energies we observe a similar relative v_2 baryon-meson splitting for all centrality classes which is in agreement within 15% with the number-of-constituent quark scaling. The larger v_2 for most particles relative to antiparticles, already observed for minimum bias collisions, shows a clear centrality dependence, with the largest difference for the most central collisions. Also, the results are compared with A Multiphase Transport Model and fit with a Blast Wave model.
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The difference in $v_{2}$ between particles (X) and their corresponding antiparticles $\bar{X}$ (see legend) as a function of $\sqrt{s_{NN}}$ for 10%-40% central Au + Au collisions. The systematic errors are shown by the hooked error bars. The dashed lines in the plot are fits with a power-law function.
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The difference in $v_{2}$ between protons and antiprotons as a function of $\sqrt{s_{NN}}$ for 0%-10%, 10%-40% and 40%-80% central Au + Au collisions. The systematic errors are shown by the hooked error bars. The dashed lines in the plot are fits with a power-law function.
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The relative difference. The systematic errors are shown by the hooked error bars. The dashed lines in the plot are fits with a power-law function.
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The $v_{2}$ difference between protons and antiprotons (and between $\pi^{+}$ and $pi^{-}$) for 10%-40% centrality Au+Au collisions at 7.7, 11.5, 14.5, and 19.6 GeV. The $v_{2}{BBC} results were slightly shifted horizontally.
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The two-particle angular correlation functions, $R_2$, of pions, kaons, and protons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV were measured by the STAR experiment at RHIC. These correlations were measured for both like-sign and unlike-sign charge combinations and versus the centrality. The correlations of pions and kaons show the expected near-side ({\it i.e.}, at small relative angles) peak resulting from short-range mechanisms. The amplitudes of these short-range correlations decrease with increasing beam energy. However, the proton correlation functions exhibit strong anticorrelations in the near-side region. This behavior is observed for the first time in an A+A collision system. The observed anticorrelation is $p_{T}$-independent and decreases with increasing beam energy and centrality. The experimental results are also compared to the Monte Carlo models UrQMD, Hijing, and AMPT.
We report a systematic measurement of cumulants, $C_{n}$, for net-proton, proton and antiproton multiplicity distributions, and correlation functions, $\kappa_n$, for proton and antiproton multiplicity distributions up to the fourth order in Au+Au collisions at $\sqrt{s_{\mathrm {NN}}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4 and 200 GeV. The $C_{n}$ and $\kappa_n$ are presented as a function of collision energy, centrality and kinematic acceptance in rapidity, $y$, and transverse momentum, $p_{T}$. The data were taken during the first phase of the Beam Energy Scan (BES) program (2010 -- 2017) at the BNL Relativistic Heavy Ion Collider (RHIC) facility. The measurements are carried out at midrapidity ($|y| <$ 0.5) and transverse momentum 0.4 $<$$p_{\rm T}$$<$ 2.0 GeV/$c$, using the STAR detector at RHIC. We observe a non-monotonic energy dependence ($\sqrt{s_{\mathrm {NN}}}$ = 7.7 -- 62.4 GeV) of the net-proton $C_{4}$/$C_{2}$ with the significance of 3.1$\sigma$ for the 0-5% central Au+Au collisions. This is consistent with the expectations of critical fluctuations in a QCD-inspired model. Thermal and transport model calculations show a monotonic variation with $\sqrt{s_{\mathrm {NN}}}$. For the multiparticle correlation functions, we observe significant negative values for a two-particle correlation function, $\kappa_2$, of protons and antiprotons, which are mainly due to the effects of baryon number conservation. Furthermore, it is found that the four-particle correlation function, $\kappa_4$, of protons plays a role in determining the energy dependence of proton $C_4/C_1$ below 19.6 GeV, which cannot be understood by the effect of baryon number conservation.
The transverse momentum ($p_\mathrm{T}$) distributions of $\Lambda$, $\Xi^-$, and $\Omega^-$ baryons, their antiparticles, and K$^0_\mathrm{S}$ mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to integrated luminosities of 40.2 nb$^{-1}$ and 15.6 $\mu$b$^{-1}$ for pp and pPb collisions, respectively, were collected by the CMS experiment. The nuclear modification factor $R_\mathrm{pPb}$, defined as the ratio of the particle yield in pPb collisions and a scaled pp reference, is measured for each particle. A strong dependence on particle species is observed in the $p_\mathrm{T}$ range from 2 to 7 GeV, where $R_\mathrm{pPb}$ for K$^0_\mathrm{S}$ is consistent with unity, while an enhancement ordered by strangeness content and/or particle mass is observed for the three baryons. In pPb collisions, the strange hadron production is asymmetric about the nucleon-nucleon center-of-mass rapidity. Enhancements, which depend on the particle type, are observed in the direction of the Pb beam. The results are compared to predictions from EPOS LHC, which includes parametrized radial flow. The model is in qualitative agreement with the $R_\mathrm{pPb}$ data, but fails to describe the dependence on particle species in the yield asymmetries measured away from mid-rapidity in pPb collisions.
Invariant $p_{T}$-differential spectra of ${K_{0}}^{S}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various |$y_{CM}$| ranges
Invariant $p_{T}$-differential spectra of ${K_{0}}^{S}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
Invariant $p_{T}$-differential spectra of $\Lambda + \bar{\Lambda}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various |$y_{CM}$| ranges
Invariant $p_{T}$-differential spectra of $\Lambda + \bar{\Lambda}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
Invariant $p_{T}$-differential spectra of $\Xi- + \bar{\Xi+}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various |$y_{CM}$| ranges
Invariant $p_{T}$-differential spectra of $\Xi- + \bar{\Xi+}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
Invariant $p_{T}$-differential spectra of $\Omega- + \bar{\Omega+}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
Invariant $p_{T}$-differential spectra of $\Omega- + \bar{\Omega+}$ in p+p and p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in -1.8 < $y_{CM}$ < 0
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0 < $y_{CM}$ < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
Invariant $p_{T}$-differential spectra of ${K_{0}}^{S}$ in p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in |$y_{CM}$| < 1.8
Invariant $p_{T}$-differential spectra of $\Lambda + \bar{\Lambda}$ in p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in -1.8 < $y_{CM}$ < 0
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.3 < $y_{CM}$ < 0.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in -1.8 < $y_{CM}$ < 0
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.8 < $y_{CM}$ < 1.3
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in -1.8 < $y_{CM}$ < 0
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 1.3 < $y_{CM}$ < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0 < $y_{CM}$ < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0 < $y_{CM}$ < 1.8
$R_{pPb}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0 < $y_{CM}$ < 1.8
Invariant $p_{T}$-differential spectra of ${K_{0}}^{S}$ in p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
Invariant $p_{T}$-differential spectra of $\Lambda + \bar{\Lambda}$ in p+Pb at $\sqrt{s}$=5.02 TeV in various $y_{CM}$ ranges
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.3 < |$y_{CM}$| < 0.8
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.3 < |$y_{CM}$| < 0.8
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.3 < |$y_{CM}$| < 0.8
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.8 < |$y_{CM}$| < 1.3
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.8 < |$y_{CM}$| < 1.3
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 0.8 < |$y_{CM}$| < 1.3
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 1.3 < |$y_{CM}$| < 1.8
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 1.3 < |$y_{CM}$| < 1.8
$Y_{asym}$ in p+Pb at $\sqrt{s}$=5.02 TeV in 1.3 < |$y_{CM}$| < 1.8
Measurements of the elliptic flow, $v_{2}$, of identified hadrons ($\pi^{\pm}$, $K^{\pm}$, $K_{s}^{0}$, $p$, $\bar{p}$, $\phi$, $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, $\bar{\Omega}^{+}$) in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 19.6, 27, 39 and 62.4 GeV are presented. The measurements were done at mid-rapidity using the Time Projection Chamber and the Time-of-Flight detectors of the STAR experiment during the Beam Energy Scan program at RHIC. A significant difference in the $v_{2}$ values for particles and the corresponding anti-particles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, $\sqrt{s_{NN}}$ (or increasing baryon chemical potential, $\mu_{B}$) and is larger for the baryons as compared to the mesons. This implies that particles and anti-particles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of $v_{2}$ that was observed at $\sqrt{s_{NN}}=$ 200 GeV. However, for the group of particles NCQ scaling at $(m_{T}-m_{0})/n_{q}>$ 0.4 GeV/$c^{2}$ is not violated within $\pm$10%. The $v_{2}$ values for $\phi$ mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured $p_{T}$ values.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum, p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow,v_2, as a function of the transverse momentum,p_T, from 0–80% central Au+Au collisions for various particle species and energies.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected particles re plotted only for the transverse momentum range of 0.2< pT<1.6 GeV/c to emphasize the mass ordering at low p__T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2 (p_T), in 0–80% central Au+Au collisions for selected anti-particles are plotted only for the transverse momentum range of 0.2< p_T<1.6 GeV/c to emphasize the mass ordering at low p_T.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged pions as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged kaons as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of charged koans as a function of the transverse momentum,p_T,for 0–80% central Au+Au collisions. Different ∆v_2 ranges were used for the upper and lower panels.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of p, $\overline{p}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au. collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Lambda$ and $\overline{\Lambda}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $\Xi^{-}$ and $\overline{\Xi^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of $Omega^{-}$ and $\overline{\Omega^{+}}$ as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions.
The elliptic flow,v_2 of Λ,Λbar as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow,v_2, of $\phi$ mesons as a function of the transverse momentum, p_T, for 0–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 0–10% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow,v_2 of Λ,Λbar as a function of the transverse momentum, p_T,for 0–80% central Au+Au collisions
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 10–40% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow, v_2, of p and $\overline{p}$ as a function of the transverse momentum, p_T, for 40–80% central Au+Au collisions.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The elliptic flow,v_2, of 0–80% central Au+Au collisions as a function of the reduced transverse mass,$ m_T−m_0 $, for selected anti-particles.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of √sNN for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of √sNN for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of √sNN for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of √sNN for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of √sNN for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of $μ_B$ for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of $μ_B$ for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of $μ_B$ for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of $μ_B$ for 0–80% central Au+Au collisions.
The difference in the v_2 values between a particle X and its corresponding anti-particle $\overline{X}$ as a function of $μ_B$ for 0–80% central Au+Au collisions.
The proton and anti-proton elliptic flow for 0–80% central Au+Au collisions at √sNN= 19.6 GeV, where “(+,-) EP” refers to the event plane reconstructed using all of the charged particles and “(-) EP” refers to the event plane reconstructed using only the negatively charged particles.
We report systematic measurements of bulk properties of the system created in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 14.5 GeV recorded by the STAR detector at the Relativistic Heavy Ion Collider (RHIC).The transverse momentum spectra of $\pi^{\pm}$, $K^{\pm}$ and $p(\bar{p})$ are studied at mid-rapidity ($|y| < 0.1$) for nine centrality intervals. The centrality, transverse momentum ($p_T$),and pseudorapidity ($\eta$) dependence of inclusive charged particle elliptic flow ($v_2$), and rapidity-odd charged particles directed flow ($v_{1}$) results near mid-rapidity are also presented. These measurements are compared with the published results from Au+Au collisions at other energies, and from Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV. The results at $\sqrt{s_{\mathrm{NN}}}$ = 14.5 GeV show similar behavior as established at other energies and fit well in the energy dependence trend. These results are important as the 14.5 GeV energy fills the gap in $\mu_B$, which is of the order of 100 MeV,between $\sqrt{s_{\mathrm{NN}}}$ =11.5 and 19.6 GeV. Comparisons of the data with UrQMD and AMPT models show poor agreement in general.
The $p_{T}$ spectra of proton measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicated in the legend
The $p_{T}$ spectra of antiproton measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicatedin the legend
The $p_{T}$ spectra of $\pi^{+}$ measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicatedin the legend
The $p_{T}$ spectra of $\pi^{-}$ measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicatedin the legend
The $p_{T}$ spectra of $K^{+}$ measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicatedin the legend
The $p_{T}$ spectra of $K^{-}$ measured at midrapidity (|y|<0.1) in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV. Spectra are plotted for nine centrality classes, with some spectra multiplied by a scale factor to improve clarity, as indicatedin the legend
Average $p_{T}$ of $\pi^{+}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Average $p_{T}$ of $\pi^{-}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Average $p_{T}$ of $K^{+}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Average $p_{T}$ of $K^{-}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$= 14.5 GeV.
Average $p_{T}$ of p as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Average $p_{T}$ of p-bar as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of $\pi^{+}$ scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of $\pi^{-}$ scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of $K^{+}$ scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of $K^{-}$ scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of proton scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
dN/dy of p-bar scaled by 0.5*$N_{part}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Kinetic freeze-out temperature as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Velocity as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
The event plane resolution calculated for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV as a function of centrality.
Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 10-20% centrality in Au + Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 20-30% centrality in Au + Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 30-40% centrality in Au + Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of transverse momentum $p_{T}$ for six centrality classes, obtained using the $\eta$-sub event plane method in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$-integrated v2($\eta$) for six centrality classes, obtained using the $\eta$-sub event plane method in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
The ratio inclusive charged particle elliptic flow v2 over root-mean-square participant eccentricity $Epart_{2}$ at mid-pseudorapidity as a function of $p_{T}$ for 10–20%, 30–40%, and 50–60% collision centralities in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.
Summary of centrality bins, average number of participants $N_{part}$, number of binary collisions $N_{coll}$, reaction plane eccentricity eRP, participant eccentricity epart, root-mean-square of the participant eccentricity epart{2}, and transverse area $S_{part}$ from MC Glauber simulations at $\sqrt{s_{NN}}$ = 14.5 GeV.
The inclusive charged particle elliptic flow v2($\eta$-sub) versus pseudorapidity $\eta$ at mid-pseudorapidity for $\sqrt{s_{NN}}$ = 14.5 GeV.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 11.5 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 27.0 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of $p_{T}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 39.0 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 11.5 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 27.0 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 39.0 GeV for 0–10%, 10–40% and 40–80% centrality intervals.
Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7 – 39 GeV for 30-60% centrality intervals.
We present two-particle $p_{\rm t}$ correlations as a function of event centrality for Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV at the Relativistic Heavy Ion Collider using the STAR detector. These results are compared to previous measurements from CERES at the Super Proton Synchrotron and from ALICE at the Large Hadron Collider. The data are compared with UrQMD model calculations and with a model based on a Boltzmann-Langevin approach incorporating effects from thermalization. The relative dynamical correlations for Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 200 GeV show a power law dependence on the number of participant nucleons and agree with the results for Pb+Pb collisions at $\sqrt{s_{\rm NN}} = 2.76~ {\rm TeV}$ from ALICE. As the collision energy is lowered from $\sqrt{s_{\rm NN}}$ = 200 GeV to 7.7 GeV, the centrality dependence of the relative dynamical correlations departs from the power law behavior observed at the higher collision energies. In central collisions, the relative dynamical correlations increase with collision energy up to $\sqrt{s_{\rm NN}}$ = 200 GeV in contrast to previous measurements that showed little dependence on the collision energy.
We report the energy dependence of mid-rapidity (anti-)deuteron production in Au+Au collisions at $\sqrt{s_\text{NN}} =\ $7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV, measured by the STAR experiment at RHIC. The yield of deuterons is found to be well described by the thermal model. The collision energy, centrality, and transverse momentum dependence of the coalescence parameter $B_2$ are discussed. We find that the values of $B_2$ for anti-deuterons are systematically lower than those for deuterons, indicating that the correlation volume of anti-baryons is larger than that of baryons at $\sqrt{s_\text{NN}}$ from 19.6 to 39 GeV. In addition, values of $B_2$ are found to vary with collision energy and show a broad minimum around $\sqrt{s_\text{NN}}=\ $20 to 40 GeV, which might imply a change of the equation of state of the medium in these collisions.
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