Bulk Properties of the System Formed in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 14.5 GeV

The STAR collaboration
Phys.Rev.C 101 (2020) 024905, 2020.

Abstract (data abstract)
BNL-STAR. Data from the paper "Bulk Properties of the System Formed in Au+Au Collisions at $\sqrt{s_{NN}}$ = 14.5 GeV". Systematic measurements of bulk properties of the system created in Au+Au collisions at $\sqrt{s_{NN}}$ = 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 (p-bar) 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 (v2), and rapidity-odd charged particles directed flow (v1) 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 $\sqrt{s_{NN}}$ = 2.76 TeV. The results at $\sqrt{s_{NN}}$ = 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 $\sqrt{s_{NN}}$ =11.5 and 19.6 GeV. Comparisons of the data with UrQMD and AMPT models show poor agreement in general.

  • Proton spectra

    Figure 7a

    10.17182/hepdata.103857.v1/t1

    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...

  • Antiproton spectra

    Figure 7b

    10.17182/hepdata.103857.v1/t2

    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...

  • Pi+ spectra

    Figure 7c

    10.17182/hepdata.103857.v1/t3

    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...

  • Pi- spectra

    Figure 7d

    10.17182/hepdata.103857.v1/t4

    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...

  • $K^{+}$ spectra

    Figure 7e

    10.17182/hepdata.103857.v1/t5

    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...

  • $K^{-}$ spectra

    Figure 7f

    10.17182/hepdata.103857.v1/t6

    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...

  • Average $p_{T}$ as a function of $N_{part}$ (pi+)

    Figure 8a

    10.17182/hepdata.103857.v1/t7

    Average $p_{T}$ of $\pi^{+}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.

  • Average $p_{T}$ as a function of $N_{part}$ (pi-)

    Figure 8b

    10.17182/hepdata.103857.v1/t8

    Average $p_{T}$ of $\pi^{-}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.

  • Average $p_{T}$ as a function of $N_{part}$ ($K^{+}$)

    Figure 8c

    10.17182/hepdata.103857.v1/t9

    Average $p_{T}$ of $K^{+}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.

  • Average $p_{T}$ as a function of $N_{part}$ ($K^{-}$)

    Figure 8d

    10.17182/hepdata.103857.v1/t10

    Average $p_{T}$ of $K^{-}$ as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$= 14.5 GeV.

  • Average $p_{T}$ as a function of $N_{part}$ (p)

    Figure 8e

    10.17182/hepdata.103857.v1/t11

    Average $p_{T}$ of p as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.

  • Average $p_{T}$ as a function of $N_{part}$ (p-bar)

    Figure 8f

    10.17182/hepdata.103857.v1/t12

    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 as a function of $N_{part}$ (pi+)

    Figure 9a

    10.17182/hepdata.103857.v1/t13

    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...

  • dN/dy as a function of $N_{part}$ (pi-)

    Figure 9b

    10.17182/hepdata.103857.v1/t14

    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...

  • dN/dy as a function of $N_{part}$ ($K^{+}$)

    Figure 9c

    10.17182/hepdata.103857.v1/t15

    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...

  • dN/dy as a function of $N_{part}$ ($K^{-}$)

    Figure 9d

    10.17182/hepdata.103857.v1/t16

    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...

  • dN/dy as a function of $N_{part}$ (p)

    Figure 9e

    10.17182/hepdata.103857.v1/t17

    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...

  • dN/dy as a function of $N_{part}$ (p-bar)

    Figure 9f

    10.17182/hepdata.103857.v1/t18

    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...

  • $T_{kin}$ as a function of $N_{part}$

    Figure 13a

    10.17182/hepdata.103857.v1/t19

    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 $N_{part}$

    Figure 13b

    10.17182/hepdata.103857.v1/t20

    Velocity as a function of number of participant for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV.

  • Event plane resolution as a function of centrality

    Figure 14

    10.17182/hepdata.103857.v1/t21

    The event plane resolution calculated for Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV as a function of centrality.

  • v2 as a function of $p_{T}$ (10-20% centrality)

    Figure 15a

    10.17182/hepdata.103857.v1/t22

    Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 10-20% centrality in Au...

  • v2 as a function of $p_{T}$ (20-30% centrality)

    Figure 15b

    10.17182/hepdata.103857.v1/t23

    Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 20-30% centrality in Au...

  • v2 as a function of $p_{T}$ (30-40% centrality)

    Figure 15c

    10.17182/hepdata.103857.v1/t24

    Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of $p_{T}$ for 30-40% centrality in Au...

  • v2(EtaSub) as a function of $p_{T}$ for six centrality classes

    Figure 16a

    10.17182/hepdata.103857.v1/t25

    Inclusive charged particle elliptic flow v2 at mid-pseudorapidity (|y| <1.0) as a function of transverse momentum $p_{T}$ for six centrality...

  • v2 as a function of eta for six centrality classes

    Figure 16b

    10.17182/hepdata.103857.v1/t26

    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,...

  • The ratio $v2/Epart_{2}$ as a function of $p_{T}$

    Figure 17

    10.17182/hepdata.103857.v1/t27

    The ratio inclusive charged particle elliptic flow v2 over root-mean-square participant eccentricity $Epart_{2}$ at mid-pseudorapidity as a function of $p_{T}$...

  • Table

    Table

    10.17182/hepdata.103857.v1/t28

    Summary of centrality bins, average number of participants $N_{part}$, number of binary collisions $N_{coll}$, reaction plane eccentricity eRP, participant eccentricity...

  • v2 as a function of eta for 10-40% centrality class

    Figure 19

    10.17182/hepdata.103857.v1/t29

    The inclusive charged particle elliptic flow v2($\eta$-sub) versus pseudorapidity $\eta$ at mid-pseudorapidity for $\sqrt{s_{NN}}$ = 14.5 GeV.

  • v1 as a function of $p_{T}$ (7.7 GeV)

    Figure 20a

    10.17182/hepdata.103857.v1/t30

    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...

  • v1 as a function of $p_{T}$ (11.5 GeV)

    Figure 20b

    10.17182/hepdata.103857.v1/t31

    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...

  • v1 as a function of $p_{T}$ (14.5 GeV)

    Figure 20c

    10.17182/hepdata.103857.v1/t32

    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...

  • v1 as a function of $p_{T}$ (19.6 GeV)

    Figure 20d

    10.17182/hepdata.103857.v1/t33

    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...

  • v1 as a function of $p_{T}$ (27.0 GeV)

    Figure 20e

    10.17182/hepdata.103857.v1/t34

    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...

  • v1 as a function of $p_{T}$ (39.0 GeV)

    Figure 20f

    10.17182/hepdata.103857.v1/t35

    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...

  • v1 as a function of eta for different centralities (7.7 GeV)

    Figure 21a

    10.17182/hepdata.103857.v1/t36

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7 GeV...

  • v1 as a function of eta for different centralities (11.5 GeV)

    Figure 21b

    10.17182/hepdata.103857.v1/t37

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 11.5 GeV...

  • v1 as a function of eta for different centralities (14.5 GeV)

    Figure 21c

    10.17182/hepdata.103857.v1/t38

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.5 GeV...

  • v1 as a function of eta for different centralities (19.6 GeV)

    Figure 21d

    10.17182/hepdata.103857.v1/t39

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6 GeV...

  • v1 as a function of eta for different centralities (27.0 GeV)

    Figure 21e

    10.17182/hepdata.103857.v1/t40

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 27.0 GeV...

  • v1 as a function of eta for different centralities (39.0 GeV)

    Figure 21f

    10.17182/hepdata.103857.v1/t41

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 39.0 GeV...

  • v1 as a function of eta for 30-60%

    Figure 22

    10.17182/hepdata.103857.v1/t42

    Rapidity-odd charged particles directed flow v1 as a function of pseudorapidity $\eta$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 7.7 –...

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