Prompt and non-prompt $J/\psi$ and $\psi(2\mathrm{S})$ suppression at high transverse momentum in 5.02 TeV Pb+Pb collisions with the ATLAS experiment

The ATLAS collaboration
Eur.Phys.J.C 78 (2018) 762, 2018.

Abstract
A measurement of $J/\psi$ and $\psi(2\mathrm{S})$ production is presented. It is based on a data sample from Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV and $pp$ collisions at $\sqrt{s}$ = 5.02 TeV recorded by the ATLAS detector at the LHC in 2015, corresponding to an integrated luminosity of $0.42\mathrm{nb}^{-1}$ and $25\mathrm{pb}^{-1}$ in Pb+Pb and $pp$, respectively. The measurements of per-event yields, nuclear modification factors, and non-prompt fractions are performed in the dimuon decay channel for $9 < p_{T}^{\mu\mu} < 40$ GeV in dimuon transverse momentum, and $-2.0 < y_{\mu\mu} < 2.0$ in rapidity. Strong suppression is found in Pb+Pb collisions for both prompt and non-prompt $J/\psi$, as well as for prompt and non-prompt $\psi(2\mathrm{S})$, increasing with event centrality. The suppression of prompt $\psi(2\mathrm{S})$ is observed to be stronger than that of $J/\psi$, while the suppression of non-prompt $\psi(2\mathrm{S})$ is equal to that of the non-prompt $J/\psi$ within uncertainties, consistent with the expectation that both arise from \textit{b}-quarks propagating through the medium. Despite prompt and non-prompt $J/\psi$ arising from different mechanisms, the dependence of their nuclear modification factors on centrality is found to be quite similar.

  • Table 1

    Data from Figure 03a

    10.17182/hepdata.103082.v1/t1

    Per-event-yield of prompt jpsi production in 5.02 TeV PbPb collision data as a function of pT for three different centrality...

  • Table 2

    Data from Figure 03b

    10.17182/hepdata.103082.v1/t2

    Per-event-yield of non-prompt jpsi production in 5.02 TeV PbPb collision data as a function of pT for three different centrality...

  • Table 3

    Data from Figure 04a

    10.17182/hepdata.103082.v1/t3

    Non-prompt fraction of jpsi production in 5.02 TeV PbPb collision data as a function of pT for three different centrality...

  • Table 4

    Data from Figure 04b

    10.17182/hepdata.103082.v1/t4

    Non-prompt fraction of jpsi production in 5.02 TeV PbPb collision data as a function of pT for integrated centrality in...

  • Table 5

    Data from Figure 05a

    10.17182/hepdata.103082.v1/t5

    The nuclear modification factor as a function of pT for the prompt jpsi for |y|<2, in 0--80% centrality bin.

  • Table 6

    Data from Figure 05c

    10.17182/hepdata.103082.v1/t6

    The nuclear modification factor as a function of pT for the prompt jpsi for |y|<2, in 0--10%, 20--40%, and 40--80%...

  • Table 7

    Data from Figure 05b

    10.17182/hepdata.103082.v1/t7

    The nuclear modification factor as a function of pT for the non-prompt jpsi for |y|<2, in 0--80% centrality bin.

  • Table 8

    Data from Figure 05d

    10.17182/hepdata.103082.v1/t8

    The nuclear modification factor as a function of pT for the non-prompt jpsi for |y|<2, in 0--10%, 20--40%, and 40--80%...

  • Table 9

    Data from Figure 06b

    10.17182/hepdata.103082.v1/t9

    The nuclear modification factor as a function of pT for the prompt and non-prompt jpsi for |y|<2, in 0--20% centrality...

  • Table 10

    Data from Figure 07a

    10.17182/hepdata.103082.v1/t10

    The nuclear modification factor as a function of eta for the prompt jpsi for 9 < pT < 40 GeV,...

  • Table 11

    Data from Figure 07c

    10.17182/hepdata.103082.v1/t11

    The nuclear modification factor as a function of eta for the prompt jpsi for 9 < pT < 40 GeV,...

  • Table 12

    Data from Figure 07b

    10.17182/hepdata.103082.v1/t12

    The nuclear modification factor as a function of eta for the non-prompt jpsi for 9 < pT < 40 GeV,...

  • Table 13

    Data from Figure 07d

    10.17182/hepdata.103082.v1/t13

    The nuclear modification factor as a function of eta for the non-prompt jpsi for 9 < pT < 40 GeV,...

  • Table 14

    Data from Figure 08a

    10.17182/hepdata.103082.v1/t14

    The nuclear modification factor as a function of Npart for the prompt jpsi for |y|<2, and 9 < pT <...

  • Table 15

    Data from Figure 08b

    10.17182/hepdata.103082.v1/t15

    The nuclear modification factor as a function of Npart for the non-prompt jpsi for |y|<2, and 9 < pT <...

  • Table 16

    Data from Figure 09a

    10.17182/hepdata.103082.v1/t16

    The double ratio of nuclear modification factor as a function of Npart for the prompt jpsi and psi(2S) for |y|<2,...

  • Table 17

    Data from Figure 09b

    10.17182/hepdata.103082.v1/t17

    The double ratio nuclear modification factor as a function of Npart for the non-prompt jpsi and psi(2S) for |y|<2, and...

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.