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Measurement of prompt and nonprompt J/𝜓 production in pp and pPb collisions at √‾SNN=5.02TeV

Show simple item record CMS Collaboration en_US Sirunyan, A. M. en_US CHAUHAN, S. en_US DUBE, SOURABH en_US HEGDE, V. en_US KAPOOR, A. en_US KOTHEKAR, K. en_US PANDEY, S. en_US RANE, A. en_US SHARMA, SEEMA et al. en_US 2019-07-01T05:41:18Z 2019-07-01T05:41:18Z 2017-04 en_US
dc.identifier.citation European Physical Journal C, 77, 269. en_US
dc.identifier.issn 1434-6044 en_US
dc.identifier.issn 1434-6052 en_US
dc.identifier.uri en_US
dc.description.abstract This paper reports the measurement of J/𝜓 meson production in proton–proton (pp) and proton–lead (pPb) collisions at a center-of-mass energy per nucleon pair of 5.02TeV by the CMS experiment at the LHC. The data samples used in the analysis correspond to integrated luminosities of 28pb−1 and 35nb−1 for pp and pPb collisions, respectively. Prompt and nonprompt J/𝜓 mesons, the latter produced in the decay of B hadrons, are measured in their dimuon decay channels. Differential cross sections are measured in the transverse momentum range of 2<𝑝T<30GeV/𝑐, and center-of-mass rapidity ranges of |𝑦CM|<2.4 (pp) and −2.87<𝑦CM<1.93 (pPb). The nuclear modification factor, 𝑅pPb, is measured as a function of both 𝑝T and 𝑦CM. Small modifications to the J/𝜓 cross sections are observed in pPb relative to pp collisions. The ratio of J/𝜓 production cross sections in p-going and Pb-going directions, 𝑅FB, studied as functions of 𝑝T and 𝑦CM, shows a significant decrease for increasing transverse energy deposited at large pseudorapidities. These results, which cover a wide kinematic range, provide new insight on the role of cold nuclear matter effects on prompt and nonprompt J/𝜓 production. en_US
dc.language.iso en en_US
dc.publisher Springer Nature en_US
dc.subject Measurement of prompt en_US
dc.subject Nonprompt en_US
dc.subject Meson production en_US
dc.subject Cold nuclear matter effects|Quark-gluon plasma en_US
dc.subject 2017 en_US
dc.title Measurement of prompt and nonprompt J/𝜓 production in pp and pPb collisions at √‾SNN=5.02TeV en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle European Physical Journal C en_US
dc.publication.originofpublisher Foreign en_US

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