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Multiplicity dependence of $${\Xi }_{\text{c}}^{+}$$ and $${\Xi }_{\text{c}}^{0}$$ production in pp collisions at $$\sqrt{s}=13$$ TeV

2Citations signalées — pas une note de qualité
140Institutions déclarées
34Pays d’affiliation déclarés

Résumé fourni par la source

A bstract The first measurement at midrapidity (| y | < 0 . 5) of the production yield of the strange-charm baryons $${\Xi }_{\text{c}}^{+}$$ and $${\Xi }_{\text{c}}^{0}$$ as a function of transverse momentum ( p T ) in different charged-particle multiplicity classes in proton-proton collisions at $$\sqrt{s}=13$$ TeV with the ALICE experiment at the LHC is reported. The $${\Xi }_{\text{c}}^{+}$$ baryon is reconstructed via the $${\Xi }_{\text{c}}^{+}\to {\Xi }^{-}{\pi }^{+}{\pi }^{+}$$ decay channel in the range 4 < p T < 12 GeV /c , while the $${\Xi }_{\text{c}}^{0}$$ baryon is reconstructed via both the $${\Xi}_{\text{c}}^{0}\to {\Xi}^{-}{\pi }^{+}$$ and $${\Xi}_{\text{c}}^{0}\to {\Xi}^{-}{\text{e}}^{+}{\nu }_{\text{e}}$$ decay channels in the range 2 < p T < 12 GeV /c . The baryon-to-meson $$\left({\Xi}_{\text{c}}^{0,+}/{\text{D}}^{0}\right)$$ and the baryon-to-baryon $$\left({\Xi}_{\text{c}}^{0,+}/{\Lambda}_{\text{c}}^{+}\right)$$ production yield ratios show no significant dependence on multiplicity. In addition, the observed yield ratios are not described by theoretical predictions that model charm-quark fragmentation based on measurements at e + e − and e − p colliders, indicating differences in the charm-baryon production mechanism in pp collisions. A comparison with different event generators and tunings, including different modelling of the hadronisation process, is also discussed. Moreover, the branching-fraction ratio of $${\text{BR}}\left({\Xi}_{\text{c}}^{0}\to {\Xi }^{-}{\text{e}}^{+}{\nu }_{\text{e}}\right)/{\text{BR}}\left({\Xi}_{\text{c}}^{0}\to {\Xi }^{-}{\pi }^{+}\right)$$ is measured as 0.825 ± 0.094 (stat.) ± 0.081 (syst.). This value supersedes the previous ALICE measurement, improving the statistical precision by a factor of 1.6.

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DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Multiplicity dependence of $${\Xi }_{\text{c}}^{+}$$ and $${\Xi }_{\text{c}}^{0}$$ production in pp collisions at $$\sqrt{s}=13$$ TeV
Date Crossref
03/12/2025
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 ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

University of HoustonIstituto Nazionale di Fisica Nucleare, Sezione di BariEuropean Organization for Nuclear ResearchHomi Bhabha National InstituteAligarh Muslim UniversityUniversity of Pavol Jozef ŠafárikSouth Great Plain Regional Innovation AgencyNational Research and Innovation AgencyGoethe University FrankfurtGSI Helmholtz Centre for Heavy Ion ResearchIstituto Nazionale di Fisica Nucleare, Sezione di TorinoCentral China Normal UniversityUniversidad Nacional Autónoma de MéxicoSungkyunkwan UniversityUniversity of BergenTechnical University of MunichHoria 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 DerbyUniversity of MünsterHeidelberg UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di BolognaLawrence Berkeley National LaboratoryHospital Universitário da Universidade de São PauloUniversity of OsloYale UniversityThe University of TokyoWayne State UniversityIstituto 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 AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversJagiellonian UniversityAGH University of KrakowUniversity of KansasNational and Kapodistrian University of AthensGauhati UniversityHUN-REN Wigner Research Centre for PhysicsCentre National de la Recherche ScientifiqueLaboratoire de Physique Subatomique et des Technologies AssociéesIMT AtlantiqueInstitut National de Physique Nucléaire et de Physique des ParticulesNantes UniversitéUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneIndian Institute of Technology BombayPontificia Universidad Católica del PerúUniversity of CopenhagenInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgUniversidad Autónoma de SinaloaBenemérita Universidad Autónoma de PueblaPanjab UniversityCzech Technical University in PragueCzech Academy of Sciences, Nuclear Physics InstituteBose InstituteBose (United States)Oak Ridge National LaboratoryPusan National UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of BresciaInstitute of Space Science - INFLPR SubsidiaryPolytechnic University of BariDaresbury LaboratoryStefan Meyer Institute for Subatomic PhysicsUniversity of the WitwatersrandNational Research FoundationUniversity of BirminghamUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiWarsaw University of TechnologyUniversity of LiverpoolFudan UniversityLyon 1 UniversitéInstitut de PhysiqueMax Planck Institute for PhysicsInha UniversityNational Institute for Subatomic PhysicsLund UniversityUniversity of TsukubaIstituto Nazionale di Fisica Nucleare, Sezione di CagliariNational Agency for New Technologies, Energy and Sustainable Economic DevelopmentLaboratoire de Physique Subatomique et de CosmologieLaboratoire de Physique des 2 Infinis Irène Joliot-CurieUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Universidade Federal do ABCUniversity of PaviaUniversidade de São PauloUniversity of California SystemUniversity of FoggiaUniversity of BonnComenius University BratislavaHiroshima UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiPolitecnico di TorinoThe University of Texas at AustinIstituto Nazionale di Fisica Nucleare, Sezione di TriesteSaga UniversityChicago State UniversityUniversidade Federal do Rio Grande do SulUniversity of Tennessee at KnoxvilleUniversity of SplitUtrecht UniversityA. Alikhanyan National LaboratoryChina Institute of Atomic EnergyNagasaki Institute of Applied ScienceYonsei UniversityUniversity of South-Eastern NorwayUniversity of JyväskyläCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalChina University of GeosciencesThe Ohio State UniversityTechnical University of KošiceUniversidade Estadual de Campinas (UNICAMP)Suranaree University of TechnologySlovak Academy of SciencesYıldız Technical UniversityJeonbuk National UniversitySejong UniversityCalifornia Polytechnic State UniversityUniversity of ZagrebPolish Academy of SciencesNational Centre for Nuclear ResearchCentro de Aplicaciones Tecnológicas y Desarrollo NuclearUniversity of MessinaHelsinki Institute of PhysicsChungbuk National UniversityCreighton UniversityUniversity of WrocławNational Nuclear Research CenterKorea Institute of Science & Technology InformationUniversity of TübingenUniversidad Autónoma de NayaritNara Women's UniversityNational Academy of Sciences of Ukraine

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Sujets associés

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

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