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Measurements of mu mu pairs from open heavy flavor and Drell-Yan in p plus p collisions at root s=200 GeV

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dc.contributor.authorAidala, C.
dc.contributor.authorAkiba, Y.
dc.contributor.authorAlfred, M.
dc.contributor.authorAndrieux, V.
dc.contributor.authorBlau, D. S.
dc.contributor.authorRiabov, V.
dc.contributor.authorSamsonov, V.
dc.contributor.authorTaranenko, A.
dc.contributor.authorБлау, Дмитрий Сергеевич
dc.contributor.authorРябов, Виктор Германович
dc.contributor.authorТараненко, Аркадий Владимирович
dc.date.accessioned2024-11-20T11:11:49Z
dc.date.available2024-11-20T11:11:49Z
dc.date.issued2019
dc.description.abstractPHENIX reports differential cross sections of mu mu pairs from semileptonic heavy-flavor decays and the Drell-Yan production mechanism measured in p + p collisions at root s = 200 GeV at forward and backward rapidity (1.2 < vertical bar eta vertical bar < 2.2). The mu mu pairs from c (c) over bar, b (b) over bar, and Drell-Yan are separated using a template fit to unlike- and like-sign muon pair spectra in mass and p(T). The azimuthal opening angle correlation between the muons from c (c ) over bar and b (b) over bar decays and the pair-p(T) distributions are compared to distributions generated using PYTHIA and POWHEG models, which both include next-to-leading order processes. The measured distributions for pairs from a are consistent with PYTHIA calculations. The c (c) over bar data present narrower azimuthal correlations and softer p(T) distributions compared to distributions generated from POWHEG. The b (b ) over bar data are well described by both models. The extrapolated total cross section for bottom production is 3.75 +/- 0.24(stat) +/-(0.35)(0.50) (syst) +/- 0.45(global) [mu b], which is consistent with previous measurements at the Relativistic Heavy Ion Collider in the same system at the same collision energy and is approximately a factor of 2 higher than the central value calculated with theoretical models. The measured Drell-Yan cross section is in good agreement with next-to-leading-order quantum-chromodynamics calculations.
dc.identifier.citationMeasurements of mu mu pairs from open heavy flavor and Drell-Yan in p plus p collisions at root s=200 GeV / Aidala, C [et al.] // Physical Review D. - 2019. - 99. - № 7. - 10.1103/PhysRevD.99.072003
dc.identifier.doi10.1103/PhysRevD.99.072003
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.99.072003
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85065215476&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000464740700003
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/16918
dc.relation.ispartofPhysical Review D
dc.titleMeasurements of mu mu pairs from open heavy flavor and Drell-Yan in p plus p collisions at root s=200 GeV
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.volume99
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