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Spectra and ratios of identified particles in Au+Au and $d$+Au collisions at $\sqrt{s_{NN}}=200$ GeV

The PHENIX collaboration
Phys.Rev.C 88 (2013) 024906, 2013.

Abstract (data abstract)
The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.

  • fig4: kaon AuAu

    10.17182/hepdata.96572.v1/t1

    kaon AuAu Invariant yields versus $p_T$

  • fig4: kaon dAu

    10.17182/hepdata.96572.v1/t2

    kaon dAu Invariant yields versus $p_T$

  • fig4: pion AuAu

    10.17182/hepdata.96572.v1/t3

    pion AuAu Invariant yields versus $p_T$

  • fig4: pion dAu

    10.17182/hepdata.96572.v1/t4

    pion dAu Invariant yields versus $p_T$

  • fig4: proton AuAu

    10.17182/hepdata.96572.v1/t5

    proton AuAu Invariant yields versus $p_T$

  • fig4: proton dAu

    10.17182/hepdata.96572.v1/t6

    proton dAu Invariant yields versus $p_T$

  • fig5: ratio of kaon AuAu

    10.17182/hepdata.96572.v1/t7

    AuAu Ratio kaon versus $p_T$

  • fig5: ratio of kaon dAu

    10.17182/hepdata.96572.v1/t8

    dAu Ratio kaon versus $p_T$

  • fig5: ratio of pion AuAu

    10.17182/hepdata.96572.v1/t9

    AuAu Ratio pion versus $p_T$

  • fig5: ratio of pion dAu

    10.17182/hepdata.96572.v1/t10

    dAu Ratio pion versus $p_T$

  • fig5: ratio of proton AuAu

    10.17182/hepdata.96572.v1/t11

    AuAu Ratio proton versus $p_T$

  • fig5: ratio of proton dAu

    10.17182/hepdata.96572.v1/t12

    dAu Ratio proton versus $p_T$

  • fig6: ratio of kaon/pion AuAu

    10.17182/hepdata.96572.v1/t13

    AuAu Ratio $kaon/\pi$ versus $p_T$

  • fig7: ratio of kaon/pion dAu

    10.17182/hepdata.96572.v1/t14

    dAu Ratio $kaon/\pi$ versus $p_T$

  • fig8: ratio of proton/pion AuAu

    10.17182/hepdata.96572.v1/t15

    AuAu Ratio $p/\pi$ versus $p_T$

  • fig9: ratio of proton/pion dAu

    10.17182/hepdata.96572.v1/t16

    dAu Ratio $p/\pi$ versus $p_T$

  • fig10: rcp kaon

    10.17182/hepdata.96572.v1/t17

    AuAu kaon $R_{CP}$ versus $p_T$

  • fig10: rcp pion

    10.17182/hepdata.96572.v1/t18

    AuAu pion $R_{CP}$ versus $p_T$

  • fig10: rcp proton

    10.17182/hepdata.96572.v1/t19

    AuAu proton $R_{CP}$ versus $p_T$

  • fig11: raa kaon

    10.17182/hepdata.96572.v1/t20

    AuAu kaon $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig11: raa pion

    10.17182/hepdata.96572.v1/t21

    AuAu pion $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig11: raa proton

    10.17182/hepdata.96572.v1/t22

    AuAu proton $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig12: rda kaon

    10.17182/hepdata.96572.v1/t23

    dAu kaon $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig12: rda pion

    10.17182/hepdata.96572.v1/t24

    dAu pion $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig12: rda proton

    10.17182/hepdata.96572.v1/t25

    dAu proton $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)

  • fig15: kaon AuAu

    10.17182/hepdata.96572.v1/t26

    kaon AuAu Ratio of Invariant yields versus $p_T$

  • fig15: pion AuAu

    10.17182/hepdata.96572.v1/t27

    pion AuAu Ratio of Invariant yields versus $p_T$

  • fig15: proton AuAu

    10.17182/hepdata.96572.v1/t28

    proton AuAu Ratio of Invariant yields versus $p_T$

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