Show simple item record

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.typeresearch article
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.type.publicationarticle
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


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

CC BY 4.0
Except where otherwise noted, this item's license is described as CC BY 4.0