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Constraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at √sNN = 5.02 TeV

dc.contributor.authorSirunyan, A. M.
dc.contributor.authorIşıldak, Bora
dc.date.accessioned2019-03-27T06:39:37Z
dc.date.available2019-03-27T06:39:37Z
dc.date.issued2018-08-07
dc.identifier.issn0031-9007en_US
dc.identifier.urihttp://hdl.handle.net/10679/6227
dc.identifier.urihttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.062002
dc.description.abstractThe pseudorapidity distributions of dijets as functions of their average transverse momentum (p(T)(ave)) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment at the CERN LHC, at a nucleon-nucleon center-of-mass energy of 5.02 TeV. A significant modification of the pPb spectra with respect to the pp spectra is observed in all p(T)(ave) intervals investigated. The ratios of the pPb and pp distributions are compared to next-to-leading order perturbative quantum chromodynamics calculations with unbound nucleon and nuclear parton distribution functions (PDFs). These results give the first evidence that the gluon PDF at large Bjorken x in lead ions is strongly suppressed with respect to the PDF in unbound nucleons.en_US
dc.description.sponsorshipBMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, ERC IUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); NKFIA (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI and FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Letters
dc.rightsopenAccess
dc.titleConstraining gluon distributions in nuclei using dijets in proton-proton and proton-lead collisions at √sNN = 5.02 TeVen_US
dc.typeArticleen_US
dc.description.versionPublisher versionen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora
dc.contributor.ozuauthorIşıldak, Bora
dc.creatorThe CMS Collaboration
dc.identifier.volume121en_US
dc.identifier.issue6en_US
dc.identifier.wosWOS:000441021400008
dc.identifier.doi10.1103/PhysRevLett.121.062002en_US
dc.identifier.scopusSCOPUS:2-s2.0-85052065307
dc.contributor.authorMale1
dc.relation.publicationcategoryArticle - International Refereed Journal - Institutional Academic Staff


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