Measurement of $\psi(2S)$ nuclear modification at backward and forward rapidity in $p$ $+$ $p$, $p$ $+$ Al, and $p$ $+$ Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV

The PHENIX collaboration
Phys.Rev.C 105 (2022) 064912, 2022.

Abstract (data abstract)
BNL-RHIC. Suppression of the J/$\psi$ nuclear modification factor has been seen as a trademark signature of final state effects in large collision systems for decades. In small systems, the nuclear modification was attributed to cold nuclear matter effects until the observation of strong differential suppression of the $\psi$(2S) state in $p/d$+A collisions suggested the presence of final state effects. Results of J/$\psi$ and $\psi$(2S) measurements in the dimuon decay channel are presented here for $p$+$p$, $p$+Al, and $p$+Au collision systems at $\sqrt{s_NN} = 200$~GeV. The results are predominantly shown in the form of the nuclear modification factor, $R_{AB}$, the ratio of the $\psi$(2S) invariant yield per nucleon-nucleon collision in collisions of proton on target nucleus to that in $p$+$p$ collisions. Measurements of the J/$\psi$ and $\psi$(2S) nuclear modification factor are compared with shadowing and transport model predictions, as well as to complementary measurements at Large-Hadron-Collider energies.

  • Figures 3-9, PSI(2S)

    Data from Figures 3-9 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV ''

    10.17182/hepdata.130200.v1/t1

    PSI(2S)-->MU+MU- invariant yields in p+p, p+Al, and p+Au collisions as a function of rapidity. The statistical and systematic uncertainties vary...

  • Figures 3-9, J/PSI(1S)

    Data from Figures 3-9 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t2

    J/PSI(1S)-->MU+MU- invariant yields in p+p, p+Al, and p+Au collisions as a function of rapidity. The statistical and systematic uncertainties vary...

  • Figure 3, PSI(2S)

    Data from Figure 3 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t3

    PSI(2S)-->MU+MU- nuclear modification in p+Al collisions as a function of rapidity. The statistical and systematic uncertainties vary point-to-point and are...

  • Figure 3, J/PSI(1S)

    Data from Figure 3 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t4

    J/PSI(1S)-->MU+MU- nuclear modification in p+Al collisions as a function of rapidity. The statistical and systematic uncertainties vary point-to-point and are...

  • Figures 4 and 9, PSI(2S)

    Data from Figures 4 and 9 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t5

    PSI(2S)-->MU+MU- nuclear modification in p+Au collisions as a function of rapidity. The statistical and systematic uncertainties vary point-to-point and are...

  • Figures 4 and 9, J/PSI(1S)

    Data from Figures 4 and 9 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t6

    J/PSI(1S)-->MU+MU- nuclear modification in p+Au collisions as a function of rapidity. The statistical and systematic uncertainties vary point-to-point and are...

  • Figures 5, 6, and 7, FWD PSI(2S)

    Data from Figures 5, 6, and 7 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t7

    PSI(2S)-->MU+MU- nuclear modification in p+Au collisions as a function of centrality at forward rapidity. The statistical and systematic uncertainties vary...

  • Figures 5, 6, and 7, BKWD PSI(2S)

    Data from Figures 5, 6, and79 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t8

    PSI(2S)-->MU+MU- nuclear modification in p+Au collisions as a function of centrality at backward rapidity. The statistical and systematic uncertainties vary...

  • Figures 5, 6, and 7, J/PSI(1S)

    Data from Figures 5, 6, and 7 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t9

    J/PSI(1S)-->MU+MU- nuclear modification in p+Au collisions as a function of centrality. The statistical and systematic uncertainties vary point-to-point and are...

  • Figure 8

    Data from Figure 8 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t10

    Invariant yield ratio of PSI(2S)-->MU+MU- with respect to J/PSI(1S)-->MU+MU- in p+p collisions at rapidity 1.2 < |y| < 2.2. The...

  • Figure 8, FWD

    Data from Figure 8 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t11

    Invariant yield ratio of PSI(2S)-->MU+MU- with respect to J/PSI(1S)-->MU+MU- in p+Au collisions as a function of centrality at forward rapidity....

  • Figure 8, BKWD

    Data from Figure 8 of ''Measurement of $\psi$(2S) at forward and backward rapiidty in $p$+$p$, $p$+Al, and $p$+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV''

    10.17182/hepdata.130200.v1/t12

    Invariant yield ratio of PSI(2S)-->MU+MU- with respect to J/PSI(1S)-->MU+MU- in p+Au collisions as a function of centrality at backward rapidity....

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