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dc.contributor.authorKhachatryan, Vardan
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorNoonan, Daniel
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, F.
dc.date.accessioned2018-04-11T17:34:09Z
dc.date.available2018-04-11T17:34:09Z
dc.date.issued2017-07-10
dc.identifier.citationKhachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., . . . Woods, N. (2017). Suppression of ϒ(1S), ϒ(2S), and ϒ(3S) quarkonium states in PbPb collisions at sNN=2.76TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 770, 357-379. 10.1016/j.physletb.2017.04.031en_US
dc.identifier.urihttp://hdl.handle.net/11141/2378
dc.descriptionBottomonia, CMS, Dimuons, Heavy ions, Physicsen_US
dc.description.abstractThe production yields of ϒ(1S), ϒ(2S), and ϒ(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 2.76 TeV. The data correspond to integrated luminosities of 166μb−1 and 5.4pb−1 for PbPb and pp collisions, respectively. Differential production cross sections are reported as functions of ϒ rapidity y up to 2.4, and transverse momentum pT up to 20GeV/c. A strong centrality-dependent suppression is observed in PbPb relative to pp collisions, by factors of up to ≈2 and 8, for the ϒ(1S) and ϒ(2S) states, respectively. No significant dependence of this suppression is observed as a function of y or pT. The ϒ(3S) state is not observed in PbPb collisions, which corresponds to a suppression for the centrality-integrated data by at least a factor of ≈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 plasmaen_US
dc.language.isoen_USen_US
dc.rights© 2017 the authorsen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleSuppression of ϒ(1S), ϒ(2S), and ϒ(3S) quarkonium states in PbPb collisions at sNN=2.76TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.physletb.2017.04.031


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