Constraining Gluon Distributions in Nuclei Using Dijets in Proton-Proton and Proton-Lead Collisions at √sNN=5.02 TeV

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dc.authoridGrunewald, Martin/0000-0002-5754-0388
dc.authoridd'Enterria, David/0000-0002-5754-4303
dc.authoridAttia Mahmoud, Mohammed/0000-0001-8692-5458
dc.authoridShi, Kun/0000-0001-9833-5674
dc.authoridAlbataineh, Ayman Ahmad/0000-0003-4026-7626
dc.authoridBoimska, Bozena/0000-0002-4200-1541
dc.authoridSola, Valentina/0000-0001-6288-951X
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.date.accessioned2025-03-23T19:33:46Z
dc.date.available2025-03-23T19:33:46Z
dc.date.issued2018
dc.departmentSinop Üniversitesi
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.
dc.description.sponsorshipBMWFW (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER (Estonia); ERC IUT (Estonia); ERDF (Estonia); Academy of Finland (Finland); MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); NKFIA (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP (Republic of Korea); NRF (Republic of Korea); LAS (Lithuania); MOE (Malaysia); UM (Malaysia);; BUAP (Mexico); CINVESTAV (Mexico); CONACYT (Mexico); LNS (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Dubna); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); MESTD (Serbia); SEIDIR (Spain); CPAN (Spain); PCTI (Spain); FEDER (Spain);; Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter (Thailand); IPST (Thailand); STAR (Thailand); NSTDA (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); SFFR (Ukraine); STFC (United Kingdom); DOE (USA); NSF (USA); STFC [ST/J005479/1, ST/N000242/1, ST/I003622/1, ST/K003542/1, ST/M004775/1, ST/J004871/1, ST/I505580/1, ST/L005603/1, ST/N001273/1, ST/F007434/1] Funding Source: UKRI; Direct For Mathematical & Physical Scien; Division Of Physics [1151640] Funding Source: National Science Foundation
dc.description.sponsorshipWe thank Nestor Armesto, Paukkunen Hannu, Pia Zurita, Petja Paakkinen and Carlos Salgado for the useful discussions and the NLO pQCD calculations with various nPDFs. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW 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.identifier.doi10.1103/PhysRevLett.121.062002
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue6
dc.identifier.pmid30141647
dc.identifier.scopus2-s2.0-85052065307
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.121.062002
dc.identifier.urihttps://hdl.handle.net/11486/5525
dc.identifier.volume121
dc.identifier.wosWOS:000441021400008
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectTransverse-Momentum
dc.subjectJet Production
dc.subjectPb Collisions
dc.subjectParticle-Production
dc.subjectDependence
dc.subjectCentrality
dc.subjectRapidity
dc.subjectSpectra
dc.subjectPdfs
dc.titleConstraining Gluon Distributions in Nuclei Using Dijets in Proton-Proton and Proton-Lead Collisions at √sNN=5.02 TeV
dc.typeArticle

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