Fragmentation of jets containing a prompt J/psi meson in PbPb and pp collisions at root s(NN)=5.02 TeV
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Published version
Author(s)
Type
Journal Article
Abstract
Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-ofmass 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 < 40 GeV. 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/ψ
yield 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.
momentum range of 30 < pT < 40 GeV. 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/ψ
yield 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.
Date Issued
2022-02-10
Date Acceptance
2021-12-14
Citation
Physics Letters B: Nuclear Physics and Particle Physics, 2022, 825, pp.1-25
ISSN
0370-2693
Publisher
Elsevier
Start Page
1
End Page
25
Journal / Book Title
Physics Letters B: Nuclear Physics and Particle Physics
Volume
825
Copyright Statement
© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000778434900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
CMS
Heavy ions
Quarkonia
Jets
SUPPRESSION
Publication Status
Published
Article Number
ARTN 136842
Date Publish Online
2021-12-27