• Browse all
Measurement of differential $J/\psi$ production cross sections and forward-backward ratios in p + Pb collisions with the ATLAS detector

The ATLAS collaboration
Phys.Rev. C92 (2015) 034904, 2015

Abstract (data abstract)
CERN-LHC. Measurements of differential cross-sections for J/psi production in p+Pb collisions at sqrt(s_NN) = 5.02 TeV at the LHC with the ATLAS detector are presented. The data set used corresponds to an integrated luminosity of 28.1 nb^-1. The J/psi mesons are reconstructed in the dimuon decay channel over the transverse momentum range 8< pT< 30 GeV and over the center-of-mass rapidity range -2.87< y* <1.94. Prompt J/psi are separated from J/psi resulting from b-hadron decays through an analysis of the distance between the J/psi decay vertex and the event primary vertex. The differential cross-section for production of nonprompt J/psi is compared to a FONLL calculation that does not include nuclear effects. Forward-backward production ratios are presented and compared to theoretical predictions. These results constrain the kinematic dependence of nuclear modifications of charmonium and b-quark production in p+Pb collisions.

  • Table 1

    Data from Figure 3 and Table VII

    10.17182/hepdata.77275.v1/t1

    Measured non-prompt fraction.

  • Table 2

    Data from Figure 3 and Table VII

    10.17182/hepdata.77275.v1/t2

    Measured non-prompt fraction.

  • Table 3

    Data from Figure 4 and Table V

    10.17182/hepdata.77275.v1/t3

    Measured prompt J/psi differential cross-section multiplied by branching ratio. The first systematic uncertainty is the combined systematic uncertainty excluding luminosity,...

  • Table 4

    Data from Figure 4 and Table VI

    10.17182/hepdata.77275.v1/t4

    Measured non-prompt J/psi differential cross-section multiplied by branching ratio. The first systematic uncertainty is the combined systematic uncertainty excluding luminosity,...

  • Table 5

    Data from Figure 5 and Table V

    10.17182/hepdata.77275.v1/t5

    Measured prompt J/psi differential cross-section multiplied by branching ratio. The first systematic uncertainty is the combined systematic uncertainty excluding luminosity,...

  • Table 6

    Data from Figure 5 and Table VI

    10.17182/hepdata.77275.v1/t6

    Measured non-prompt J/psi differential cross-section multiplied by branching ratio. The first systematic uncertainty is the combined systematic uncertainty excluding luminosity,...

  • Table 7

    Data from Figure 6 and Table VIII

    10.17182/hepdata.77275.v1/t7

    Measured forward-backward production ratio.

  • Table 8

    Data from Figure 7 and Table VIII

    10.17182/hepdata.77275.v1/t8

    Measured forward-backward production ratio.

Loading Data...