TY - JOUR
T1 - Prompt and non-prompt J/ψ production at midrapidity in Pb–Pb collisions at √sNN = 5.02 TeV
AU - The ALICE collaboration [email protected]
AU - Acharya, S.
AU - Adamová, D.
AU - Aglieri Rinella, G.
AU - Agnello, M.
AU - Agrawal, N.
AU - Ahammed, Z.
AU - Ahmad, S.
AU - Ahn, S. U.
AU - Ahuja, I.
AU - Akindinov, A.
AU - Al-Turany, M.
AU - Aleksandrov, D.
AU - Alessandro, B.
AU - Alfanda, H. M.
AU - Alfaro Molina, R.
AU - Ali, B.
AU - Alici, A.
AU - Alizadehvandchali, N.
AU - Alkin, A.
AU - Alme, J.
AU - Alocco, G.
AU - Alt, T.
AU - Altamura, A. R.
AU - Altsybeev, I.
AU - Alvarado, J. R.
AU - Anaam, M. N.
AU - Andrei, C.
AU - Andreou, N.
AU - Andronic, A.
AU - Anguelov, V.
AU - Antinori, F.
AU - Antonioli, P.
AU - Apadula, N.
AU - Aphecetche, L.
AU - Appelshäuser, H.
AU - Arata, C.
AU - Arcelli, S.
AU - Aresti, M.
AU - Arnaldi, R.
AU - Grelli, A.
AU - Keijdener, D. L.D.
AU - Kuhn, C.
AU - Kuijer, P. G.
AU - Peitzmann, T.
AU - Qiu, S.
AU - Sas, M. H.P.
AU - Snellings, R. J.M.
AU - van Doremalen, L. V.R.
AU - Vermunt, L.
AU - Verweij, M.
AU - Hofman, Bas
AU - Lömker, Johanna
AU - Massen, Olaf
N1 - Publisher Copyright:
© The Author(s) 2024.
PY - 2024/2/9
Y1 - 2024/2/9
N2 - The transverse momentum (pT) and centrality dependence of the nuclear modification factor RAA 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 sNN = 5.02 TeV. The measurements are carried out through the e+e− decay channel at midrapidity (|y| < 0.9) in the transverse momentum region 1.5 < pT < 10 GeV/c. Both prompt and non-prompt J/ψ measurements indicate a significant suppression for pT > 5 GeV/c, which becomes stronger with increasing collision centrality. The results are consistent with similar LHC measurements in the overlapping pT intervals, and cover the kinematic region down to pT = 1.5 GeV/c 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.
AB - The transverse momentum (pT) and centrality dependence of the nuclear modification factor RAA 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 sNN = 5.02 TeV. The measurements are carried out through the e+e− decay channel at midrapidity (|y| < 0.9) in the transverse momentum region 1.5 < pT < 10 GeV/c. Both prompt and non-prompt J/ψ measurements indicate a significant suppression for pT > 5 GeV/c, which becomes stronger with increasing collision centrality. The results are consistent with similar LHC measurements in the overlapping pT intervals, and cover the kinematic region down to pT = 1.5 GeV/c 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.
KW - Heavy Ion Experiments
KW - Heavy Quark Production
KW - Quarkonium
UR - http://www.scopus.com/inward/record.url?scp=85194473837&partnerID=8YFLogxK
U2 - 10.1007/JHEP02(2024)066
DO - 10.1007/JHEP02(2024)066
M3 - Article
AN - SCOPUS:85194473837
SN - 1126-6708
VL - 2024
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 2
M1 - 66
ER -