Article
Fragmentation of jets containing a prompt J/ψ meson in PbPb and pp collisions at √sNN=5.02 TeV Public Deposited
- Abstract
Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV, using the CMS detector at the LHC. Jets are selected to be in the transverse momentum range of 30<pT<40GeV. The J/ψ yield in these jets is evaluated as a function of the jet fragmentation variable z, the ratio of the J/ψ pT to the jet pT. The nuclear modification factor, RAA, is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψyield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.
- Creator
- Date Issued
- 2022
- Academic Affiliation
- Journal Title
- Journal Volume
- 825
- Dernière modification
- 2024-11-19
- Resource Type
- Déclaration de droits
- DOI
- ISSN
- 1873-2445
- Language
- License
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1-s2.0-S0370269321007826-main.pdf | 2024-11-19 | Public | Télécharger |