Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at sNN=5.02 TeV

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dc.citation.firstpage270en_US
dc.citation.journalTitlePhysics Letters Ben_US
dc.citation.lastpage293en_US
dc.citation.volumeNumber790en_US
dc.contributor.authorThe CMS Collaborationen_US
dc.date.accessioned2021-10-07T18:33:00Zen_US
dc.date.available2021-10-07T18:33:00Zen_US
dc.date.issued2019en_US
dc.description.abstractThe cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead–lead (PbPb) and proton–proton (pp) collisions at sNN=5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, RAA(ϒ(1S))>RAA(ϒ(2S))>RAA(ϒ(3S)). The suppression of ϒ(1S) is larger than that seen at sNN=2.76TeV, although the two are compatible within uncertainties. The upper limit on the RAA of ϒ(3S) integrated over pT, rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date.en_US
dc.identifier.citationThe CMS Collaboration. "Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at sNN=5.02 TeV." <i>Physics Letters B,</i> 790, (2019) Elsevier: 270-293. https://doi.org/10.1016/j.physletb.2019.01.006.en_US
dc.identifier.digital1-s2-0-S037026931930022X-mainen_US
dc.identifier.doihttps://doi.org/10.1016/j.physletb.2019.01.006en_US
dc.identifier.urihttps://hdl.handle.net/1911/111511en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/).en_US
dc.titleMeasurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at sNN=5.02 TeVen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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