Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV

The ALICE collaboration Adam, Jaroslav ; Adamova, Dagmar ; Aggarwal, Madan Mohan ; et al.
Phys.Rev. C93 (2016) 034913, 2016.
Inspire Record 1377750 DOI 10.17182/hepdata.71310
16 data tables

Invariant yields of identified pions in Pb-Pb collisions.

Invariant yields of identified kaons in Pb-Pb collisions.

Invariant yields of identified protons in Pb-Pb collisions.

More…

Production of charged pions, kaons and protons at large transverse momenta in pp and Pb–Pb collisions at $\sqrt{s_{\rm NN}}$ =2.76 TeV

The ALICE collaboration Abelev, Betty Bezverkhny ; Adam, Jaroslav ; Adamova, Dagmar ; et al.
Phys.Lett. B736 (2014) 196-207, 2014.
Inspire Record 1276299 DOI 10.17182/hepdata.62520
7 data tables

Invariant yields of identified pions in central and peripheral Pb-Pb collisions, together with the unscaled pp reference yields.

Invariant yields of identified kaons in central and peripheral Pb-Pb collisions, together with the unscaled pp reference yields.

Invariant yields of identified protons in central and peripheral Pb-Pb collisions, together with the unscaled pp reference yields.

More…

Centrality dependence of $\pi$, K, p production in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

The ALICE collaboration Abelev, Betty ; Adam, Jaroslav ; Adamova, Dagmar ; et al.
Phys.Rev. C88 (2013) 044910, 2013.
Inspire Record 1222333 DOI 10.17182/hepdata.61925
57 data tables

pT-differential invariant yield of pion+ and pion- for centrality 0-5%. These data are also available from http://hepdata.cedar.ac.uk/view/ins1126966.

pT-differential invariant yield of pion+ and pion- for centrality 5-10%.

pT-differential invariant yield of pion+ and pion- for centrality 10-20%.

More…

Pion, Kaon, and Proton Production in Central Pb--Pb Collisions at $\sqrt{s_{NN}} = 2.76$ TeV

The ALICE collaboration Abelev, Betty ; Adam, Jaroslav ; Adamova, Dagmar ; et al.
Phys.Rev.Lett. 109 (2012) 252301, 2012.
Inspire Record 1126966 DOI 10.17182/hepdata.59720
4 data tables

Transverse momentum distribution for positve and negative pions.

Transverse momentum distribution for positve and negative kaons.

Transverse momentum distribution for positve and negative protons.

More…

Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from $\sqrt{s_{NN}}$ = 6.3 to 17.3~GeV

The NA49 collaboration Anticic, T. ; Baatar, B. ; Barna, D. ; et al.
Phys.Rev. C83 (2011) 061902, 2011.
Inspire Record 884686 DOI 10.17182/hepdata.58492

Kaons and protons carry large parts of two conserved quantities, strangeness and baryon number. It is argued that their correlation and thus also fluctuations are sensitive to conditions prevailing at the anticipated parton-hadron phase boundary. Fluctuations of the $(\mathrm{K}^+ + \mathrm{K}^-)/(\mathrm{p}+\bar{\mathrm{p}})$ and $\mathrm{K}^+/\mathrm{p}$ ratios have been measured for the first time by NA49 in central Pb+Pb collisions at 5 SPS energies between $\sqrt{s_{NN}}$= 6.3 GeV and 17.3 GeV. Both ratios exhibit a change of sign in $\sigma_{\mathrm{dyn}}$, a measure of non-statistical fluctuations, around $\sqrt{s_{NN}}$ = 8 GeV. Below this energy, $\sigma_{\mathrm{dyn}}$ is positive, indicating higher fluctuation compared to a mixed event background sample, while for higher energies, $\sigma_{\mathrm{dyn}}$ is negative, indicating correlated emission of kaons and protons. The results are compared to UrQMD calculations which which give a good description at the higher SPS energies, but fail to reproduce the transition to positive values.

2 data tables

The energy dependence of the event-by-event dynamical fluctuations of the (K+ + K-)/(P + PBAR) ratios.

The energy dependence of the event-by-event dynamical fluctuations of the (K+)/(P) ratios.


Pion and kaon production in central Pb + Pb collisions at 20-A and 30-A-GeV: Evidence for the onset of deconfinement

The NA49 collaboration Alt, C. ; Anticic, T. ; Baatar, B. ; et al.
Phys.Rev. C77 (2008) 024903, 2008.
Inspire Record 762554 DOI 10.17182/hepdata.25169

Results on charged pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV are presented and compared to data at lower and higher energies. A rapid change of the energy dependence is observed around 30A GeV for the yields of pions and kaons as well as for the shape of the transverse mass spectra. The change is compatible with the prediction that the threshold for production of a state of deconfined matter at the early stage of the collisions is located at low SPS energies.

13 data tables

Transverse mass spectra for pion production in the central rapidity region for collisions at 20 GeV per nucleon.

Transverse mass spectra for pion production in the central rapidity region for collisions at 30 GeV per nucleon.

Transverse mass spectra for kaon production in the central rapidity region for collisions at 20 GeV per nucleon.

More…

Energy dependence of pion and kaon production in central Pb + Pb collisions

The NA49 collaboration Afanasiev, S.V. ; Anticic, T. ; Barna, D. ; et al.
Phys.Rev. C66 (2002) 054902, 2002.
Inspire Record 586383 DOI 10.17182/hepdata.31729

Measurements of charged pion and kaon production in central Pb+Pb collisions at 40, 80 and 158 AGeV are presented. These are compared with data at lower and higher energies as well as with results from p+p interactions. The mean pion multiplicity per wounded nucleon increases approximately linearly with s_NN^1/4 with a change of slope starting in the region 15-40 AGeV. The change from pion suppression with respect to p+p interactions, as observed at low collision energies, to pion enhancement at high energies occurs at about 40 AGeV. A non-monotonic energy dependence of the ratio of K^+ to pi^+ yields is observed, with a maximum close to 40 AGeV and an indication of a nearly constant value at higher energies.The measured dependences may be related to an increase of the entropy production and a decrease of the strangeness to entropy ratio in central Pb+Pb collisions in the low SPS energy range, which is consistent with the hypothesis that a transient state of deconfined matter is created above these energies. Other interpretations of the data are also discussed.

33 data tables

The centrality of the collisions expressed as a percentage of the inelastic cross section (7.15nb), and the mean numbers of wounded nuclei.

The inverse slope parameter of the fitted transverse mass spectra.

The rapidity density averaged over the rapidity interval -0.6 to 0.6.

More…

Strange meson enhancement in Pb Pb collisions

The NA44 collaboration Bearden, I. ; Boggild, H. ; Boissevain, J. ; et al.
Phys.Lett. B471 (1999) 6-12, 1999.
Inspire Record 504074 DOI 10.17182/hepdata.31360
4 data tables

Inverse slope paramters of the (1/MT)*DN/DMT distribution.

Rapidity distributions for K+ and K- production.. Statistical and systematic errors added in quadrature.

Rapidity distributions for PI+ and PI- production.. Statistical and systematic errors added in quadrature.

More…

Kaon and proton ratios from central Pb + Pb collisions at the CERN SPS

The NA44 collaboration Bearden, I.G. ; Boggild, H. ; Boissevain, J. ; et al.
Nucl.Phys. A638 (1998) 419-422, 1998.
Inspire Record 481886 DOI 10.17182/hepdata.36250
2 data tables

Data obtained from the fit of MT spectra.

Data obtained from the fit of MT spectra.


Hadron yields and hadron spectra from the NA49 experiment

The NA49 collaboration Jones, P.G. ; Afanasev, S.V. ; Alber, T. ; et al.
Nucl.Phys. A610 (1996) 188C-199C, 1996.
Inspire Record 432742 DOI 10.17182/hepdata.36468
4 data tables

CENTRAL COLLISIONS, PRELIMINARY DATA.

CENTRAL COLLISIONS, PRELIMINARY DATA.

CENTRAL COLLISIONS, PRELIMINARY DATA.

More…

Hadron distributions: Recent results from the CERN experiment NA44

The NA44 collaboration Xu, N. ; Bearden, I.G. ; Boggild, H. ; et al.
Nucl.Phys. A610 (1996) 175C-187C, 1996.
Inspire Record 432743 DOI 10.17182/hepdata.36469
1 data table

CENTRAL COLLISIONS: SIG(TRIG)/SIG(GEOM)=10%.


Collective expansion in high-energy heavy ion collisions

The NA44 collaboration Bearden, I.G. ; Boggild, H. ; Boissevain, J. ; et al.
Phys.Rev.Lett. 78 (1997) 2080-2083, 1997.
Inspire Record 426801 DOI 10.17182/hepdata.52345
3 data tables

(1/MT)*d(N)/d(MT) = A *exp(-MT/SLOPE).

(1/MT)*d(N)/d(MT) = A *exp(-MT/SLOPE).

The SLOPE from the parameterization of (1/MT)*d(N)/d(MT) = A*exp(-MT/SLOPE)is fitted as follows SLOPE = CONST(C=1) + M(hadron)*CONST(C=2)**2.