Title
Suppression of non-prompt <tex>$J/\psi$</tex>, prompt <tex>$J/\psi$</tex>, and <tex>$\Upsilon$</tex>(1S) in PbPb collisions at <tex>$\sqrt{S_{NN}}$</tex> =2.76 TeV Suppression of non-prompt <tex>$J/\psi$</tex>, prompt <tex>$J/\psi$</tex>, and <tex>$\Upsilon$</tex>(1S) in PbPb collisions at <tex>$\sqrt{S_{NN}}$</tex> =2.76 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2012) :5 , 54 p.
ISSN
1126-6708
1029-8479
Article Reference
063
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Yields of prompt and non-prompt J/psi ,as well as Upsilon(1S) mesons, are measured by the CMS experiment via their mu(+)mu(-) decays in PbPb and pp collisions at root s(NN) - 2.76TeV for quarkonium rapidity |y| < 2.4. Differential cross sections and nuclear modification factors are reported as functions of y and transverse momentum p(T), as well as collision centrality. For prompt J/psi with relatively high p(T) (6.5 < p(T) < 30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions. In the same kinematic range, a suppression of non-prompt J/psi, which is sensitive to the in-medium b-quark energy loss, is measured for the first time. Also the low-p(T) Upsilon(1S) mesons are suppressed in PbPb collisions.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/bc21da/2521.pdf
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