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Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at √s=510 GeV in (p)over-right-arrow + (p)over-right-arrow Collisions

dc.contributor.authorAbdulameer, N. J.
dc.contributor.authorAcharya, U.
dc.contributor.authorAdare, A.
dc.contributor.authorAidala, C.
dc.contributor.authorAjitanand, N. N.
dc.contributor.authorAkiba, Y.
dc.contributor.authorAkimoto, R.
dc.contributor.authorFinger, Michael
dc.contributor.authorFinger, Miroslav
dc.contributor.authorGallus, P.
dc.contributor.authorSlunecka, Miloslav
dc.contributor.authorTomasek, Michal
dc.contributor.authorVirius, Miloslav
dc.contributor.authorVrba, Vaclav
dc.date.accessioned2024-03-04T09:13:24Z
dc.date.available2024-03-04T09:13:24Z
dc.date.issued2023
dc.identifier.urihttps://hdl.handle.net/20.500.14178/2347
dc.description.abstractWe present measurements of the cross section and double-helicity asymmetry ALL of direct-photon production in p ⃗ + p ⃗ collisions at ffis ffi p = 510 GeV. The measurements have been performed at midrapidity (I & eta;I < 0.25) with the PHENIX detector at the Relativistic Heavy Ion Collider. At relativistic energies, direct photons are dominantly produced from the initial quark-gluon hard scattering and do not interact via the ffiffistrong force at leading order. Therefore, at p s = 510 GeV, where leading-order-effects dominate, these measurements provide clean and direct access to the gluon helicity in the polarized proton in the gluon-momentum-fraction range 0.02 < x < 0.08, with direct sensitivity to the sign of the gluon contribution.en
dc.language.isoen
dc.relation.urlhttps://doi.org/10.1103/PhysRevLett.130.251901
dc.rightsCreative Commons Uveďte původ 4.0 Internationalcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.titleMeasurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at SQUARE ROOTs=510 GeV in (p)over-right-arrow + (p)over-right-arrow Collisionsen
dcterms.accessRightsopenAccess
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/legalcode
dc.date.updated2024-03-04T09:13:24Z
dc.subject.keywordBNLen
dc.subject.keywordRHICen
dc.subject.keywordPHENIXen
dc.subject.keywordDouble-Helicityen
dc.subject.keywordSQUARE ROOTs=510 GeVen
dc.subject.keywordCollisionsen
dc.relation.fundingReferenceinfo:eu-repo/grantAgreement/MSM/LM/LM2018109
dc.relation.fundingReferenceinfo:eu-repo/grantAgreement/MSM/LM/LM2023034
dc.date.embargoStartDate2024-03-04
dc.type.obd73
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1103/PhysRevLett.130.251901
dc.identifier.utWos001026290400006
dc.identifier.eidScopus2-s2.0-85164137210
dc.identifier.obd638744
dc.identifier.pubmed37418716
dc.subject.rivPrimary10000::10300
dcterms.isPartOf.namePhysical Review Letters
dcterms.isPartOf.issn0031-9007
dcterms.isPartOf.journalYear2023
dcterms.isPartOf.journalVolume130
dcterms.isPartOf.journalIssue25
uk.faculty.primaryId116
uk.faculty.primaryNameMatematicko-fyzikální fakultacs
uk.faculty.primaryNameFaculty of Mathematics and Physicsen
uk.department.primaryId1251
uk.department.primaryNameKatedra fyziky nízkých teplotcs
uk.department.primaryNameDepartment of Low Temperature Physicsen
dc.type.obdHierarchyCsČLÁNEK V ČASOPISU::článek v časopisu::původní článekcs
dc.type.obdHierarchyEnJOURNAL ARTICLE::journal article::original articleen
dc.type.obdHierarchyCode73::152::206en
uk.displayTitleMeasurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at &radic;<em>s</em>=510 GeV in (<em>p</em>)over-right-arrow + (<em>p</em>)over-right-arrow Collisionsen


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