TY  - CHART
AU  - ALICE Collaboration
TI  - Prompt and non-prompt J/ψ production at midrapidity in Pb−Pb collisions at √{s<sub>NN</sub>} = 5.02 TeV
M1  - GSI-2025-00199
PY  - 2024
N1  - Journal Article GSI record: GSI-2025-00198
AB  - The transverse momentum (p<sub>T</sub>) and centrality dependence of the nuclear modification factor R<sub>AA</sub> of prompt and non-prompt J/ψ, the latter originating from the weak decays of beauty hadrons, have been measured by the ALICE collaboration in Pb-Pb collisions at 5.02 TeV. The measurements are carried out through the e^+e^- decay channel at midrapidity (|y|  5 , which becomes stronger with increasing collision centrality. The results are consistent with similar LHC measurements in the overlapping p<sub>T</sub> intervals, and cover the kinematic region down to p<sub>T</sub> = 1.5  at midrapidity, not accessible by other LHC experiments. The suppression of prompt J/ψ in central and semicentral collisions exhibits a decreasing trend towards lower transverse momentum, described within uncertainties by models implementing J/ψ production from recombination of c and ―c quarks produced independently in different partonic scatterings. At high transverse momentum, transport models including quarkonium dissociation are able to describe the suppression for prompt J/ψ. For non-prompt J/ψ, the suppression predicted by models including both collisional and radiative processes for the computation of the beauty-quark energy loss inside the quark-gluon plasma is consistent with measurements within uncertainties.
LB  - PUB:(DE-HGF)32
DO  - DOI:10.17182/HEPDATA.146723
UR  - https://repository.gsi.de/record/356816
ER  -