Aller au contenu principal
Accès ouvert déclaré 2021 article

Measurement of J/ψ production cross-sections in pp collisions at $$ \sqrt{s} $$ = 5 TeV

15Citations signalées — pas une note de qualité
110Institutions déclarées
18Pays d’affiliation déclarés

Résumé fourni par la source

Abstract The production cross-sections of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of $$ \sqrt{s} $$ s = 5 TeV are measured using a data sample corresponding to an integrated luminosity of 9.13 ± 0.18 pb−1, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, pT, and rapidity, y, and separately for J/ψ mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised J/ψ mesons, the production cross-sections integrated over the kinematic range 0 < pT< 20 GeV/c and 2.0 < y < 4.5 are $$ {\displaystyle \begin{array}{c}{\sigma}_{\mathrm{prompt}}\ J/\psi =8.154\pm 0.010\pm 0.283\ \upmu \mathrm{b},\\ {}{\sigma}_{\mathrm{nonprompt}}\ J/\psi =0.820\pm 0.003\pm 0.034\ \upmu \mathrm{b},\end{array}} $$ σ prompt J / ψ = 8.154 ± 0.010 ± 0.283 μb , σ nonprompt J / ψ = 0.820 ± 0.003 ± 0.034 μb , where the first uncertainties are statistical and the second systematic. These cross-sections are compared with those at $$ \sqrt{s} $$ s = 8 TeV and 13 TeV, and are used to update the measurement of the nuclear modification factor in proton-lead collisions for J/ψ mesons at a centre-of-mass energy per nucleon pair of $$ \sqrt{s_{\mathrm{NN}}} $$ s NN = 5 TeV. The results are compared with theoretical predictions.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of J/ψ production cross-sections in pp collisions at $$ \sqrt{s} $$ = 5 TeV
Date Crossref
01/11/2021
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 ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

National Institute for Subatomic PhysicsUniversity of WarwickUniversity of ZurichUniversity of LiverpoolUniversidade de Santiago de CompostelaUniversity of BristolCentre National de la Recherche ScientifiqueUniversité Clermont AuvergneInstitut National de Physique Nucléaire et de Physique des ParticulesDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversity of MichiganIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversity of CincinnatiTU Dortmund UniversityEuropean Organization for Nuclear ResearchUniversity of GlasgowUniversitat de BarcelonaUniversity of ManchesterPetersburg Nuclear Physics InstituteUniversity of CambridgeUniversidade Federal do Rio de JaneiroUniversité Paris-SaclayLaboratoire de Physique des 2 Infinis Irène Joliot-CurieTsinghua UniversityIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeIstituto Nazionale di Fisica Nucleare, Sezione di FerraraHeidelberg UniversityKurchatov InstituteInstitute for High Energy PhysicsSyracuse UniversityYandex School of Data AnalysisAix-Marseille UniversitéCentre de physique des particules de MarseilleÉcole PolytechniqueLaboratoire Leprince-RinguetÉcole Polytechnique Fédérale de LausanneCentro Brasileiro de Pesquisas FísicasImperial College LondonIstituto Nazionale di Fisica Nucleare, Sezione di GenovaNational University of Science and TechnologyRWTH Aachen UniversityAGH University of KrakowIstituto Nazionale di Fisica Nucleare, Sezione di PisaIstituto Nazionale di Fisica Nucleare, Sezione di CagliariLomonosov Moscow State UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiUniversity of PaduaInstitute of Nuclear Physics, Polish Academy of SciencesWuhan UniversityUniversity of BirminghamUniversity of OxfordNational Research University Higher School of EconomicsUniversity of Maryland, College ParkSouth China Normal UniversityInstitute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversitat Ramon LlullUniversity of Chinese Academy of SciencesIstituto Nazionale di Fisica Nucleare, Sezione di BolognaIstituto Nazionale di Fisica Nucleare, Roma Tor VergataInstitute of High Energy PhysicsUniversité Savoie Mont BlancUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringIstituto Nazionale di Fisica Nucleare, Sezione di BariMassachusetts Institute of TechnologyLos Alamos National LaboratoryHunan UniversityUniversity of GroningenMaastricht UniversityEötvös Loránd UniversityInstitute for Nuclear ResearchUniversity College DublinKharkiv Institute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaRutherford Appleton LaboratoryMonash UniversitySiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsPeking UniversityState Key Laboratory of Nuclear Physics and TechnologyNational Centre for Nuclear ResearchPontifícia Universidade Católica do Rio de JaneiroCentral China Normal UniversityUniversitat de ValènciaInstituto de Física CorpuscularNational Research Tomsk State UniversityTomsk Polytechnic UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma IUniversity of RostockUniversidad Nacional de ColombiaUniversity of BonnUniversity of Bari Aldo MoroUniversity of FerraraUniversity of BolognaUniversity of GenoaUniversity of PisaUniversity of CagliariUniversity of Rome Tor VergataUniversity of BasilicataMax Planck Institute for Nuclear PhysicsNovosibirsk State UniversityUniversity of Milano-BicoccaUniversity of MilanUniversity of UrbinoP.N. Lebedev Physical Institute of the Russian Academy of Sciences

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

Sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

BNTIC News n’est pas le producteur de ces données. Recherche à la demande dans Crossref, OpenAIRE, DOAJ, Europe PMC, HAL, DataCite, ROR et la Banque mondiale, sans clé ; OpenAlex reste optionnel. Aucun service payant requis, aucune donnée externe enregistrée en base. Sources et limites.