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dc.contributor.authorALICE collaboration
dc.date.accessioned2022-06-08T11:28:23Z
dc.date.available2022-06-08T11:28:23Z
dc.date.issued2022
dc.identifier.citationALICE collaboration. (2022). Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at √s = 5.02 and 13 TeV. <i>Journal of High Energy Physics</i>, <i>2022</i>(3), Article 190. <a href="https://doi.org/10.1007/JHEP03(2022)190" target="_blank">https://doi.org/10.1007/JHEP03(2022)190</a>
dc.identifier.otherCONVID_146518242
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/81571
dc.description.abstractThe production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at √s = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets used for the analyses correspond to integrated luminosities of Lint = 19.4 ± 0.4 nb−1 and Lint = 32.2 ± 0.5 nb−1 at √s = 5.02 and 13 TeV, respectively. The fraction of non-prompt J/ψ mesons, i.e. those originating from the decay of beauty hadrons, is measured down to a transverse momentum pT = 2 GeV/c (1 GeV/c) at √s = 5.02 TeV (13 TeV). The pT and rapidity (y) differential cross sections, as well as the corresponding values integrated over pT and y, are carried out separately for prompt and non-prompt J/ψ mesons. The results are compared with measurements from other experiments and theoretical calculations based on quantum chromodynamics (QCD). The shapes of the pT and y distributions of beauty quarks predicted by state-of-the-art perturbative QCD models are used to extrapolate an estimate of the bb¯ pair cross section at midrapidity and in the total phase space. The total bb¯ cross sections are found to be σbb¯ = 541 ± 45 (stat.) ± 69 (syst.)+10−12 (extr.) μb and σbb¯ = 218±37 (stat.)±31 (syst.)+8.2−9.1 (extr.) μb at √s = 13 and 5.02 TeV, respectively. The value obtained from the combination of ALICE and LHCb measurements in pp collisions at √s = 13 TeV is also provided.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesJournal of High Energy Physics
dc.rightsCC BY 4.0
dc.titlePrompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at √s = 5.02 and 13 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202206083184
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn1126-6708
dc.relation.numberinseries3
dc.relation.volume2022
dc.type.versionpublishedVersion
dc.rights.copyright© CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.subject.ysohiukkasfysiikka
dc.subject.ysokvanttiväridynamiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p39318
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1007/JHEP03(2022)190
dc.type.okmA1


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