Study of J/ψ meson production inside jets in pp collisions at s=8TeV [2]

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dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.contributor.authorDragicevic, M.
dc.date.accessioned2026-04-25T14:13:20Z
dc.date.available2026-04-25T14:13:20Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractA study of the production of prompt J/ψ mesons contained in jets in proton-proton collisions at s=8TeV is presented. The analysis is based on data corresponding to an integrated luminosity of 19.1 fb−1 collected with the CMS detector at the LHC. For events with at least one observed jet, the angular separation between the J/ψ meson and the jet is used to test whether the J/ψ meson is part of the jet. The analysis shows that most prompt J/ψ mesons having energy above 15 GeV and rapidity |y|<1 are contained in jets with pseudorapidity |ηjet|<1. The differential distributions of the probability to have a J/ψ meson contained in a jet as a function of jet energy for a fixed J/ψ energy fraction are compared to a theoretical model using the fragmenting jet function approach. The data agree best with fragmenting jet function calculations that use a long-distance matrix element parameter set in which prompt J/ψ mesons are predicted to be unpolarized. This technique demonstrates a new way to test predictions for prompt J/ψ production using nonrelativistic quantum chromodynamics. © 2020 Elsevier B.V.
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dc.identifier.doi10.1016/j.physletb.2020.135409
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-105026920837
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2020.135409
dc.identifier.urihttps://hdl.handle.net/11486/8020
dc.identifier.volume804
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20260420
dc.subjectCMS
dc.subjectJ/psi Mesons
dc.subjectJets
dc.titleStudy of J/ψ meson production inside jets in pp collisions at s=8TeV [2]
dc.typeArticle

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