Probing Small Bjorken-x Nuclear Gluonic Structure via Coherent J=? Photoproduction in Ultraperipheral Pb-Pb Collisions at ?sNN = 5.02 TeV

dc.authorscopusid35222495600
dc.authorscopusid56217303000
dc.authorscopusid57222730792
dc.authorscopusid56236454000
dc.authorscopusid55470759900
dc.authorscopusid57350183900
dc.authorscopusid58189557300
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.accessioned2024-03-09T19:39:57Z
dc.date.available2024-03-09T19:39:57Z
dc.date.issued2023
dc.departmentİzmir Bakırçay Üniversitesien_US
dc.description.abstractQuasireal photons exchanged in relativistic heavy ion interactions are powerful probes of the gluonic structure of nuclei. The coherent J=? photoproduction cross section in ultraperipheral lead-lead collisions is measured as a function of photon-nucleus center-of-mass energies per nucleon (WPb?N) over a wide range of 40 < WPb?N < 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 WPb?N ? 40 GeV, up to 400 GeV, entering a new regime of small Bjorken-x (?6 × 10?5) gluons being probed in a heavy nucleus. The observed energy dependence is not predicted by current quantum chromodynamic models. © 2023 CERN, for the CMS Collaboration.en_US
dc.description.sponsorshipNational Science Foundation, NSF; U.S. Department of Energy, USDOE; Direktion für Entwicklung und Zusammenarbeit, DEZA; Secretaría de Educación Pública, SEP; CERN; Türkiye Enerji, Nükleer ve Maden Araştırma Kurumu, TENMAK; Science and Technology Facilities Council, STFC; Department of Science and Technology, Ministry of Science and Technology, India, DST; Ministry of Education - Singapore, MOE; Department of Atomic Energy, Government of India, DAE; Science Foundation Ireland, SFI; Helmholtz-Gemeinschaft, HGF; Deutsche Forschungsgemeinschaft, DFG; Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP; National Natural Science Foundation of China, NSFC; National Science Council, NSC; Fundação para a Ciência e a Tecnologia, FCT; Eesti Teadusagentuur, ETAg: PRG445, PRG780, PRG803; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES; Academy of Finland, AKA; Bundesministerium für Bildung und Forschung, BMBF; Chinese Academy of Sciences, CAS; Austrian Science Fund, FWF; Fonds De La Recherche Scientifique - FNRS, FNRS; Ministry of Science and Technology of the People's Republic of China, MOST; Opetus- ja Kulttuuriministeriö; Fonds Wetenschappelijk Onderzoek, FWO; Consejo Nacional de Ciencia y Tecnología, CONACYT; Bulgarian National Science Fund, BNSF; Haridus- ja Teadusministeerium, HM; Ministry of Business, Innovation and Employment, MBIE; Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq; Ministry of Science, ICT and Future Planning, MSIP; National Research Foundation of Korea, NRF; Instituto Nazionale di Fisica Nucleare, INFN; National Science and Technology Development Agency, ????; Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, FAPERGS; Narodowe Centrum Nauki, NCN: 2015/19/N/ST2/02697, 2018/28/T/ST2/00199; Secretaría de Educación Superior, Ciencia, Tecnología e Innovación, SENESCYT; Universiti Malaya, UM; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK; Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, MPNTR; Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ; Ministry of Science and Technology, Taiwan, MOST; National Academy of Sciences of Ukraine, NASU; Centre National de la Recherche Scientifique, CNRS; Universidad Autónoma de San Luis Potosí, UASLP; Ministry of Education and Science, MES; Institute for Research in Fundamental Sciences, IPM; Benemérita Universidad Autónoma de Puebla, BUAP; Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA; Lietuvos Moksl? Akademija; European Regional Development Fund, ERDF; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, CINVESTAV; Pakistan Atomic Energy Commission, PAEC; Ministry of Science,Technology and Research, MoSTR; Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie, BMBWF; Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI; Institut National de Physique Nucléaire et de Physique des Particules, IN2P3; Ministry of Higher Education, Science, Research and Innovation, Thailand, MHESRI; Laboratorio Nacional de Supercómputo del Sureste de Mexico, LNSen_US
dc.description.sponsorshipWe 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 and other centers 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, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); Colombian Funding Agency (MINICIENCIAS) (Colombia); Croatian Ministry of Science, Education and Sport and Croatian Science Foundation (Croatia); RIF (Cyprus); SENESCYT (Ecuador); Ministry of Education and Research, Estonian Research Council via PRG780, PRG803, and PRG445 and European Regional Development Fund (Estonia); Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); General Secretariat for Research and Innovation (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); Ministry of Education and Science (Latvia); Lithuanian Academy of Sciences (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); Ministry of Science (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); Ministry of Education, Science and Technological Development of Serbia (Serbia); MCIN/AEI and Plan de Ciencia, Tecnología e Innovación del Principado de Asturias (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); Ministry of Science and Technology (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals were supported by the National Science Center (Poland), Grants No. 2015/19/N/ST2/02697 and No. 2018/28/T/ST2/00199.en_US
dc.identifier.doi10.1103/PhysRevLett.131.262301
dc.identifier.issn0031-9007
dc.identifier.issue26en_US
dc.identifier.pmid38215362en_US
dc.identifier.scopus2-s2.0-85182298097en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.131.262301
dc.identifier.urihttps://hdl.handle.net/20.500.14034/1593
dc.identifier.volume131en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBinary alloys; Germanium alloys; Heavy ions; Ion exchange; Lead alloys; Tellurium compounds; Center-of-mass energies; Centre-of-mass energies; Heaviest nuclei; Heavy ion interactions; Integrated luminosity; Lead collisions; Nucleon-nucleon; Pb-Pb collisions; Photoproductions; Relativistic heavy ions; Photons; article; controlled study; diagnosisen_US
dc.titleProbing Small Bjorken-x Nuclear Gluonic Structure via Coherent J=? Photoproduction in Ultraperipheral Pb-Pb Collisions at ?sNN = 5.02 TeVen_US
dc.typeArticleen_US

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