dc.contributor.author | Turan Akın, Esra | |
dc.contributor.author | Hökelek, Tuncer | |
dc.date.accessioned | 2019-12-13T06:35:42Z | |
dc.date.available | 2019-12-13T06:35:42Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0370-2693 | |
dc.identifier.uri | https://doi.org/10.1016/j.physletb.2017.04.031 | |
dc.identifier.uri | http://hdl.handle.net/11655/18593 | |
dc.description.abstract | The production yields of gamma(1S), gamma(2S), and gamma(3S) quarkonium states are measured through their decays into muon pairs in the CMS detector, in PbPb and pp collisions at the centre-of-mass energy per nucleon pair of 2.76TeV. The data correspond to integrated luminosities of 166 mu b(-1) and 5.4 pb(-1) for PbPb and pp collisions, respectively. Differential production cross sections are reported as functions of gamma rapidity y up to 2.4, and transverse momentum PT up to 20 GeV/c. A strong centrality-dependent suppression is observed in PbPb relative to pp collisions, by factors of up to approximate to 2 and 8, for the gamma(1S) and gamma(2S) states, respectively. No significant dependence of this suppression is observed as a function of y or PT. The gamma(3S) state is not observed in PbPb collisions, which corresponds to a suppression for the centrality-integrated data by at least a factor of approximate to 7 at a 95% confidence level. The observed suppression is in agreement with theoretical scenarios modeling the sequential melting of quarkonium states in a quark gluon plasma. (C) 2017 The Author(s). Published by Elsevier B.V. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.relation.isversionof | 10.1016/j.physletb.2017.04.031 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | Astronomy & Astrophysics | |
dc.subject | Physics | |
dc.title | Suppression of Gamma(1S), Gamma(2S), and Gamma(3S) Quarkonium States in Pbpb Collisions at Root S-Nn=2.76Tev | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |
dc.relation.journal | Physics Letters B | |
dc.contributor.department | Fizik Mühendisliği | |
dc.identifier.volume | 770 | |
dc.identifier.startpage | 357 | |
dc.identifier.endpage | 379 | |
dc.description.index | WoS | |