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Measurement of isolated prompt photon production in pp and p–Pb collisions at the LHC

1Citations signalées, ce qui n’est pas une note de qualité
128Institutions déclarées
34Pays d’affiliation déclarés

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Le résumé fourni par la source

Abstract This paper presents the measurement of the isolated prompt photon inclusive production cross section in pp and p–Pb collisions by the ALICE Collaboration at the LHC. The measurement is performed in p–Pb collisions at centre-of-mass energies per nucleon pair of $$\sqrt{s_{\text {NN}}}={5.02}\,\textrm{TeV}$$ s NN = 5.02 TeV and 8.16 TeV, as well as in pp collisions at $$\sqrt{s}={5.02}\,\textrm{TeV}$$ s = 5.02 TeV and 8 TeV. The cross section is obtained at midrapidity $$(|y|<0.7)$$ ( | y | < 0.7 ) using a charged-track based isolation momentum $$p_\textrm{T}^{\text {iso,~ch}}<{1.5}\,\textrm{GeV}/c$$ p T iso, ch < 1.5 GeV / c in a cone with radius $$R=0.4$$ R = 0.4 . The data for both collision systems are well reproduced by perturbative QCD (pQCD) calculations at next-to-leading order (NLO) using recent parton distribution functions for free (PDF) and bound (nPDF) nucleons. Furthermore, the nuclear modification factor $$R_{\text {pA}}$$ R pA for both collision energies is consistent with unity for $$p_{\textrm{T}}$$ p T $$>{20}\,\textrm{GeV}/c$$ > 20 GeV / c . However, deviations from unity ( $$R_\textrm{pA}<1$$ R pA < 1 ) of up to 20% are observed for $$p_{\textrm{T}}$$ p T $$<{20}\,\textrm{GeV}/c$$ < 20 GeV / c with limited significance, indicating the possible presence of nuclear effects in the initial state of the collision. The suppression increases with decreasing $$p_{\textrm{T}}$$ p T with a s

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of isolated prompt photon production in pp and p–Pb collisions at the LHC
Date Crossref
11/12/2025
Éditeur
Springer Science and Business Media LLC
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Istituto Nazionale di Fisica Nucleare, Sezione di BariHomi Bhabha National InstituteEuropean Organization for Nuclear ResearchAligarh Muslim UniversityKorea Institute of Science & Technology InformationUniversity of Pavol Jozef ŠafárikGoethe University FrankfurtGSI Helmholtz Centre for Heavy Ion ResearchIstituto Nazionale di Fisica Nucleare, Sezione di TorinoCentral China Normal UniversityUniversidad Nacional Autónoma de MéxicoUniversity of HoustonSungkyunkwan UniversityUniversity of BergenTechnical University of MunichBenemérita Universidad Autónoma de PueblaHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicUniversity of DerbyMax Planck Institute for Nuclear PhysicsHeidelberg UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaLawrence Berkeley National LaboratoryLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesHospital Universitário da Universidade de São PauloUniversity of OsloYale UniversityThe University of TokyoIstituto Nazionale di Fisica Nucleare, Sezione di CataniaGangneung–Wonju National UniversityUniversity of Science and Technology of ChinaIndian Institute of Technology IndoreUniversity of JammuCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-Saclay - Etablissement de SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversJagiellonian UniversityAGH University of KrakowUniversity of KansasNational and Kapodistrian University of AthensHUN-REN Wigner Research Centre for PhysicsLaboratoire de Physique Subatomique et des Technologies AssociéesIMT AtlantiqueNantes UniversitéInstitute of Particle PhysicsLubrizol Life Science Health (United States)Indian Institute of Technology BombayPontificia Universidad Católica del PerúUniversity of CopenhagenCentre National de la Recherche ScientifiqueInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgUniversidad Autónoma de SinaloaCzech Technical University in PragueCzech Academy of Sciences, Nuclear Physics InstituteThe University of Texas at AustinOak Ridge National LaboratoryPusan National UniversityUniversity of BresciaInstitute of Space Science - INFLPR SubsidiaryPolytechnic University of BariDaresbury LaboratoryStefan Meyer Institute for Subatomic PhysicsUniversity of the WitwatersrandPolish Academy of SciencesUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiWarsaw University of TechnologyUniversity of LiverpoolFudan UniversityInstitute of Nuclear Physics of LyonInstitut de Physique des 2 Infinis de LyonInha UniversityUniversity of TsukubaIstituto Nazionale di Fisica Nucleare, Sezione di CagliariUniversity of BirminghamLaboratoire de Physique des 2 Infinis Irène Joliot-CurieUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Universidade Federal do ABCUniversity of PaviaUniversity of California SystemUniversity of FoggiaCentro de Aplicaciones Tecnológicas y Desarrollo NuclearHiroshima UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di TriesteSaga UniversityChicago State UniversityUniversidade Federal do Rio Grande do SulUniversity of Tennessee at KnoxvilleNagasaki Institute of Applied ScienceWayne State UniversityUniversity of SplitUtrecht UniversityNational Institute for Subatomic PhysicsA. Alikhanyan National LaboratoryChina Institute of Atomic EnergyYonsei UniversityUniversity of JyväskyläUniversity of BonnCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalGesellschaft Fur Mathematik Und DatenverarbeitungThe Ohio State UniversityTechnical University of KošiceSouth Great Plain Regional Innovation AgencyNational Research and Innovation AgencyUniversidade Estadual de Campinas (UNICAMP)Suranaree University of TechnologySlovak Academy of SciencesYıldız Technical UniversityUniversity of ZagrebJeonbuk National UniversitySejong UniversityCalifornia Polytechnic State UniversityPanjab UniversityNational Centre for Nuclear ResearchUniversity of South-Eastern NorwayUniversity of MessinaHelsinki Institute of PhysicsChungbuk National UniversityChina University of GeosciencesCreighton UniversityNational Nuclear Research CenterUniversity of TübingenNara Women's UniversityNational Academy of Sciences of Ukraine

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions

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