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Measurement of inclusive J/ψ polarization in p+p collisions at s =200 GeV by the STAR experiment

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dc.contributor.authorAdam, J.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorAdams, J. R.
dc.contributor.authorAdkins, J. K.
dc.contributor.authorAlekseev, I.
dc.contributor.authorBrandin, A. V.
dc.contributor.authorKhyzhniak, Y. V.
dc.contributor.authorKochenda, L.
dc.contributor.authorKravtsov, P.
dc.contributor.authorNigmatkulov, G.
dc.contributor.authorOkorokov, V. A.
dc.contributor.authorStrikhanov, M.
dc.contributor.authorTaranenko, A.
dc.contributor.authorАлексеев, Игорь Геннадьевич
dc.contributor.authorБрандин, Андрей Владимирович
dc.contributor.authorНигматкулов, Григорий Александрович
dc.contributor.authorОкороков, Виталий Алексеевич
dc.contributor.authorСтриханов, Михаил Николаевич
dc.contributor.authorТараненко, Аркадий Владимирович
dc.date.accessioned2024-11-27T10:28:05Z
dc.date.available2024-11-27T10:28:05Z
dc.date.issued2020
dc.description.abstract© 2020 authors.We report on new measurements of inclusive J/ψ polarization at midrapidity in p+p collisions at s=200 GeV by the STAR experiment at the Relativistic Heavy Ion Collider. The polarization parameters, λθ, λφ, and λθφ, are measured as a function of transverse momentum (pT) in both the helicity and Collins-Soper (CS) reference frames within pT<10 GeV/c. Except for λθ in the CS frame at the highest measured pT, all three polarization parameters are consistent with 0 in both reference frames without any strong pT dependence. Several model calculations are compared with data, and the one using the Color Glass Condensate effective field theory coupled with nonrelativistic QCD gives the best overall description of the experimental results, even though other models cannot be ruled out due to experimental uncertainties.
dc.identifier.citationMeasurement of inclusive J/ψ polarization in p+p collisions at s =200 GeV by the STAR experiment / Adam, J. [et al.] // Physical Review D. - 2020. - 102. - № 9. - 10.1103/PhysRevD.102.092009
dc.identifier.doi10.1103/PhysRevD.102.092009
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.102.092009
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85097129164&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000591182900001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22657
dc.relation.ispartofPhysical Review D
dc.titleMeasurement of inclusive J/ψ polarization in p+p collisions at s =200 GeV by the STAR experiment
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue9
oaire.citation.volume102
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