Prompt and non-prompt J/ψ production at midrapidity in Pb-Pb collisions at √s NN = 5.02 TeV
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 √s NN = 5.02 TeV. The measurements are carri...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
09 February 2024
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| In: |
Journal of high energy physics
Year: 2024, Issue: 2, Pages: 1-40 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP02(2024)066 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP02(2024)066
|
| Author Notes: | The ALICE collaboration* |
MARC
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| 245 | 1 | 0 | |a Prompt and non-prompt J/ψ production at midrapidity in Pb-Pb collisions at √s NN = 5.02 TeV |c The ALICE collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Prompt and non-prompt J/psi production at midrapidity in Pb-Pb collisions at square root s NN = 5.02 TeV |
| 264 | 1 | |c 09 February 2024 | |
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| 500 | |a *The ALICE collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, J. Crkovská, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, N.A. Grunwald, M. Kroesen, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, F. Schlepper, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, M.A. Völkl, B. Windelband, A. Yuncu, F. Zanone [und sehr viele weitere Personen] | ||
| 500 | |a Gesehen am 07.08.2024 | ||
| 520 | |a 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 √s NN = 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 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. | ||
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