The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair √sNN = 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (RAA). The RAA at √sNN = 5.02 TeV is presented and compared with previous measurements at √sNN = 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.

Acharya S., Adamova D., Adhya S.P., Adler A., Adolfsson J., Aggarwal M.M., et al. (2020). Studies of J/ψ production at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2020(2), 41-68 [10.1007/JHEP02(2020)041].

Studies of J/ψ production at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV

Alici A.;Bellini F.;Carnesecchi F.;Scioli G.;
2020

Abstract

The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair √sNN = 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (RAA). The RAA at √sNN = 5.02 TeV is presented and compared with previous measurements at √sNN = 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.
2020
Acharya S., Adamova D., Adhya S.P., Adler A., Adolfsson J., Aggarwal M.M., et al. (2020). Studies of J/ψ production at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2020(2), 41-68 [10.1007/JHEP02(2020)041].
Acharya S.; Adamova D.; Adhya S.P.; Adler A.; Adolfsson J.; Aggarwal M.M.; Aglieri Rinella G.; Agnello M.; Agrawal N.; Ahammed Z.; Ahmad S.; Ahn S.U.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/775805
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