دورية أكاديمية
Probing Small Bjorken-x Nuclear Gluonic Structure via Coherent J=? Photoproduction in Ultraperipheral Pb-Pb Collisions at ?sNN = 5.02 TeV
| العنوان: | Probing Small Bjorken-x Nuclear Gluonic Structure via Coherent J=? Photoproduction in Ultraperipheral Pb-Pb Collisions at ?sNN = 5.02 TeV |
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| المؤلفون: | Tumasyan A., Adam W., Andrejkovic J.W., Bergauer T., Chatterjee S., Damanakis K., CMS Collaboration |
| بيانات النشر: | American Physical Society |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Binary 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, diagnosis |
| الوصف: | Quasireal 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. ; National 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 ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 00319007 |
| العلاقة: | Physical Review Letters; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; https://doi.org/10.1103/PhysRevLett.131.262301Test; https://hdl.handle.net/20.500.12831/19709Test; 131; 26; 2-s2.0-85182298097 |
| DOI: | 10.1103/PhysRevLett.131.262301 |
| الإتاحة: | https://doi.org/10.1103/PhysRevLett.131.262301Test https://doi.org/20.500.12831/19709Test https://hdl.handle.net/20.500.12831/19709Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.3460CDBD |
| قاعدة البيانات: | BASE |
| تدمد: | 00319007 |
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| DOI: | 10.1103/PhysRevLett.131.262301 |