Probing small bjorken-x nuclear gluonic structure via coherent J/ψ photoproduction in ultraperipheral Pb-Pb collisions at √sNN=5.02 TeV

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dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J. W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.contributor.authorDragicevic, M.
dc.date.accessioned2024-06-13T20:18:15Z
dc.date.available2024-06-13T20:18:15Z
dc.date.issued2023
dc.departmentİstanbul Gedik Üniversitesi
dc.description.abstractQuasireal photons exchanged in relativistic heavy ion interactions are powerful probes of the gluonic structure of nuclei. The coherent J/psi photoproduction cross section in ultraperipheral lead-lead collisions is measured as a function of photon-nucleus center-of-mass energies per nucleon (W-gamma N(Pb)) over a wide range of 40 < W-gamma N(Pb) < 400 GeV. Results are obtained using data at the nucleon-nucleon center-of-mass energy of 5.02 TeV collected by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 1.52 nb(-1). The cross section is observed to rise rapidly at low WPb.N, and plateau above W-gamma N(Pb) approximate to 40 GeV, up to 400 GeV, entering a new regime of small Bjorken-x (approximate to 6 x 10(-5)) gluons being probed in a heavy nucleus. The observed energy dependence is not predicted by current quantum chromodynamic models.
dc.description.sponsorshipFWF; FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPERGS; FAPESP (Brazil); BNSF (Bulgaria); MoST; NSFC (China); Colombian Funding Agency (MINICIENCIAS) (Colombia); Croatian Ministry of Science, Education and Sport; Croatian Science Foundation (Croatia); RIF (Cyprus); SENESCYT (Ecuador); Ministry of Education and Research; Estonian Research Council [PRG780, PRG803, PRG445]; European Regional Development Fund (Estonia); Academy of Finland; CEA; CNRS/IN2P3 (France); BMBF; HGF (Germany); General Secretariat for Research and Innovation (Greece); NKFIH (Hungary); DAE; DST; SFI (Ireland); INFN (Italy); NRF (Republic of Korea); Ministry of Education and Science (Latvia); MOE; UM (Malaysia); BUAP; CONACYT; UASLP-FAI (Mexico); Ministry of Science; PAEC (Pakistan); FCT (Portugal); Ministry of Education, Science and Technological Development of Serbia; MOSTR (Sri Lanka); Ministry of Science and Technology (Taipei); NSTDA; TUBITAK; NASU (Ukraine); NSF; National Science Center (Poland) [2015/19/N/ST2/02697, 2018/28/T/ST2/00199]
dc.identifier.doi10.1103/PhysRevLett.131.262301
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue26
dc.identifier.pmid38215362
dc.identifier.scopus2-s2.0-85182298097
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.131.262301
dc.identifier.urihttps://hdl.handle.net/11501/1280
dc.identifier.volume131
dc.identifier.wosWOS:001153473000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectParticle-Production
dc.subjectDependence
dc.subjectElectrons
dc.subjectMesons
dc.titleProbing small bjorken-x nuclear gluonic structure via coherent J/ψ photoproduction in ultraperipheral Pb-Pb collisions at √sNN=5.02 TeV
dc.typeArticle

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