Article

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

• Perloff,, A.
• T. Mulholland
• Cumalat, John P
• Ford, W.T.
• Ulmer, Keith A
• Wagner, Stephen R
• Stenson, Kevin M
• E. MacDonald
• Patel, R

Date Issued

• 2022

Academic Affiliation

• Physics

Journal Title

• Physics Letters B: Nuclear Physics and Particle Physics Journal

Journal Volume

• 825

Ultima modifica

• 2024-11-19

Resource Type

• Article

Dichiarazione dei diritti

• In Copyright

DOI

•  https://doi.org/10.1016/j.physletb.2021.136842

ISSN

• 1873-2445

Language

• English [eng]

License

• Creative Commons BY Attribution 4.0 International

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