Measurement of B meson production in pp and PbPb collisions at TeV

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dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorRaics P.
dc.contributor.authorTrócsányi Z. L.
dc.contributor.authorUjvári B.
dc.contributor.authorKarancsi J.
dc.contributor.authorRaics Péter (1944-) (fizikus)
dc.contributor.authorTrócsányi Zoltán (1961-) (fizikus)
dc.contributor.authorUjvári Balázs (1977-) (Fizikus / PhD)
dc.contributor.authorKarancsi János (1987-) (fizikus)
dc.contributor.submitterdepFizikai Intézet -- 749
dc.contributor.submitterdepTTK
dc.contributor.submitterdepDebreceni Egyetem
dc.date.accessioned2024-02-29T07:14:12Z
dc.date.available2024-02-29T07:14:12Z
dc.date.oa2024-11-14
dc.date.updated2024-02-29T07:14:12Z
dc.description.abstractThe production cross sections of B-s(0) mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel B-s(0)-> J/ psi phi ->mu(+) mu(-) K+K- at a center-of-mass energy of 5.02 TeV per nucleon pair and within the rapidity range vertical bar y vertical bar < 2.4 using the CMS detector at the LHC. The pp measurement is performed as a function of transverse momentum (P-T) of the B-s(0), mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The B s production yield in PbPb collisions is measured in two F t intervals, 7 to 15 and 15 to 50 GeV/c, and compared to the yield in pp collisions in the same kinematic region. The nuclear modification factor (R-AA) is found to be 1.5 +/- 0.6(stat) +/- 0.5(syst) for 7-15 GeV/c, and 0.87 +/- 0.30(stat) +/- 0.1 7(syst) for 15-50 GeV/c, respectively. Within current uncertainties, the B-s(0) results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons.
dc.description.correctorLB
dc.identifier.citationPhysics Letters B. -796 (2019), p. 168-190. -Phys. Lett. B. -0370-2693
dc.identifier.doi10.1016/j.physletb.2019.07.014
dc.identifier.issn0370-2693
dc.identifier.opachttps://ebib.lib.unideb.hu/ebib/CorvinaWeb?action=cclfind&resultview=long&ccltext=idno+BIBFORM000000
dc.identifier.urihttps://hdl.handle.net/2437/366912
dc.identifier.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0370269319304708
dc.languageeng
dc.rights.accessopen access article
dc.subject.otheridegen nyelvű folyóiratközlemény külföldi lapban
dc.subject.otherB meson
dc.subject.otherOpen heavy-flavor
dc.subject.otherPhysics
dc.subject.otherQuark gluon plasma
dc.tenderNKFIA 123842 -- Egyéb
dc.titleMeasurement of B meson production in pp and PbPb collisions at TeV
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