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Title: Fragmentation of jets containing a prompt J$$/\psi$$ meson in PbPb and pp collisions at $$\sqrt{s_\mathrm{NN}} =$$ 5.02 TeV

Abstract

Jets containing a prompt J$$/\psi$$ 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 $$\lt p_\mathrm{T} \lt$$ 40 GeV. The J$$/\psi$$ yield in these jets is evaluated as a function of the jet fragmentation variable $$z$$, the ratio of the J$$/\psi$$$$p_\mathrm{T} $$ to the jet $$p_\mathrm{T}$$. The nuclear modification factor, $$R_\mathrm{AA}$$, 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$$/\psi$$ yield shows a dependence on $$z$$, indicating that the interaction of the J$$/\psi$$ with the quark-gluon plasma formed in heavy ion collisions depends on the fragmentation that gives rise to the J$$/\psi$$ meson.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS
OSTI Identifier:
1831857
Report Number(s):
CMS-HIN-19-007; CERN-EP-2021-104; FERMILAB-PUB-21-411-CMS; arXiv:2106.13235
oai:inspirehep.net:1870319
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
TBD
Additional Journal Information:
Journal Name: TBD
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Tumasyan, Armen, and et al. Fragmentation of jets containing a prompt J$/\psi$ meson in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV. United States: N. p., 2021. Web.
Tumasyan, Armen, & et al. Fragmentation of jets containing a prompt J$/\psi$ meson in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV. United States.
Tumasyan, Armen, and et al. 2021. "Fragmentation of jets containing a prompt J$/\psi$ meson in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV". United States. https://www.osti.gov/servlets/purl/1831857.
@article{osti_1831857,
title = {Fragmentation of jets containing a prompt J$/\psi$ meson in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV},
author = {Tumasyan, Armen and et al.},
abstractNote = {Jets containing a prompt J$/\psi$ 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 $\lt p_\mathrm{T} \lt$ 40 GeV. The J$/\psi$ yield in these jets is evaluated as a function of the jet fragmentation variable $z$, the ratio of the J$/\psi$$p_\mathrm{T} $ to the jet $p_\mathrm{T}$. The nuclear modification factor, $R_\mathrm{AA}$, 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$/\psi$ yield shows a dependence on $z$, indicating that the interaction of the J$/\psi$ with the quark-gluon plasma formed in heavy ion collisions depends on the fragmentation that gives rise to the J$/\psi$ meson.},
doi = {},
url = {https://www.osti.gov/biblio/1831857}, journal = {TBD},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 23 00:00:00 EDT 2021},
month = {Wed Jun 23 00:00:00 EDT 2021}
}