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Accès ouvert déclaré 2019 article

Multiplicity dependence of light-flavor hadron production in p p collisions at s = 7 TeV

179Citations signalées, ce qui n’est pas une note de qualité
149Institutions déclarées
36Pays d’affiliation déclarés

Rattachement africain : in, us, cz, de, se, ch, it, kr, ru, br, cn, mx, pk, ua, no, ro, gb, hr, fr, hu, pe, dk, nl, pl, sk, fi, at, jp, Afrique du Sud, cu, gr, am, tr, th, az, id. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Comprehensive results on the production of unidentified charged particles, ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}, {\mathrm{K}}^{\ifmmode\pm\else\textpm\fi{}}, {\mathrm{K}}_{\mathrm{S}}^{0}, {\mathrm{K}}^{*}{(892)}^{0}, p, \overline{p}, \ensuremath{\phi}$(1020), $\mathrm{\ensuremath{\Lambda}}, \overline{\mathrm{\ensuremath{\Lambda}}}, {\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}, {\overline{\mathrm{\ensuremath{\Xi}}}}^{+}, {\mathrm{\ensuremath{\Omega}}}^{\ensuremath{-}}$, and ${\overline{\mathrm{\ensuremath{\Omega}}}}^{+}$ hadrons in proton-proton ($pp$) collisions at $\sqrt{s}=7$ TeV at midrapidity ($|y|<0.5$) as a function of charged-particle multiplicity density are presented. In order to avoid autocorrelation biases, the actual transverse momentum (${p}_{\mathrm{T}}$) spectra of the particles under study and the event activity are measured in different rapidity windows. In the highest multiplicity class, the charged-particle density reaches about 3.5 times the value measured in inelastic collisions. While the yield of protons normalized to pions remains approximately constant as a function of multiplicity, the corresponding ratios of strange hadrons to pions show a significant enhancement that increases with increasing strangeness content. Furthermore, all identified particle-to-pion ratios are shown to depend solely on charged-particle multiplicity density, regardless of system type and collision energy. The evolution of the spectral shapes with multiplicity and hadron mass shows patterns that are similar to those observed in $p$-Pb and Pb-Pb collisions at Large Hadron Collider energies. The obtained ${p}_{\mathrm{T}}$ distributions and yields are compared to expectations from QCD-based $pp$ event generators as well as to predictions from thermal and hydrodynamic models. These comparisons indicate that traces of a collective, equilibrated system are already present in high-multiplicity $pp$ collisions.

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

Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Multiplicity dependence of light-flavor hadron production in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>p</mml:mi> <mml:mi>p</mml:mi> </mml:mrow> </mml:math> collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>7</mml:mn> <mml:mspace width="0.16em"/> <mml:mi>TeV</mml:mi> </mml:mrow> </mml:math>
Date Crossref
08/02/2019
Éditeur
American Physical Society (APS)
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

Variable Energy Cyclotron CentreHomi Bhabha National InstituteUniversity of California, BerkeleyCzech Academy of Sciences, Nuclear Physics InstituteGoethe University FrankfurtLund UniversityPanjab UniversityEuropean Organization for Nuclear ResearchPolitecnico di TorinoIndian Institute of Technology BombayKorea Institute of Science & Technology InformationYale UniversityInstitute for Theoretical and Experimental PhysicsGSI Helmholtz Centre for Heavy Ion ResearchUniversidade Estadual de Campinas (UNICAMP)Kurchatov InstituteIstituto Nazionale di Fisica Nucleare, Sezione di TorinoCentral China Normal UniversityUniversidad Nacional Autónoma de MéxicoCOMSATS University IslamabadCentro Ricerche Enrico FermiIstituto Nazionale di Fisica Nucleare, Sezione di BolognaNational Academy of Sciences of UkraineBogolyubov Institute for Theoretical PhysicsUniversity of BergenSt Petersburg UniversityHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringUniversity of BirminghamUniversity of MünsterHeidelberg UniversityCreighton UniversityRuđer Bošković InstituteIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of HoustonLawrence Berkeley National LaboratoryCentre National de la Recherche ScientifiqueLaboratoire de Physique Subatomique et des Technologies AssociéesIMT AtlantiqueInstitut National de Physique Nucléaire et de Physique des ParticulesNantes UniversitéUniversity of OsloAligarh Muslim UniversityIstituto Nazionale di Fisica Nucleare, Sezione di CataniaGangneung–Wonju National UniversityInha UniversityUniversity of JammuCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversity of BonnNational Institute of Science Education and ResearchIstituto Nazionale di Fisica Nucleare, Sezione di BariHUN-REN Wigner Research Centre for PhysicsHungarian Academy of SciencesDaresbury LaboratoryUniversité Clermont AuvergneWayne State UniversityJoint Institute for Nuclear ResearchPontificia Universidad Católica del PerúUniversity of CopenhagenUtrecht UniversityNational Institute for Subatomic PhysicsInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgBenemérita Universidad Autónoma de PueblaUniversidad Autónoma de SinaloaInstitute of Engineering PhysicsNational Research Nuclear University MEPhIPetersburg Nuclear Physics InstituteUniversity of Tennessee at KnoxvilleGauhati UniversityInstitute of Nuclear Physics, Polish Academy of SciencesIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiCzech Technical University in PragueExcellence Cluster UniverseTechnical University of MunichBose InstituteThe University of Texas at AustinUniversity of PaviaIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of Pavol Jozef ŠafárikUniversity of LiverpoolHospital Universitário da Universidade de São PauloHelsinki Institute of PhysicsAll-Russian Scientific Research Institute of Technical PhysicsStefan Meyer Institute for Subatomic PhysicsUniversity of TsukubaNational Research FoundationThe Ohio State UniversityTechnical University of KošiceIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Sezione di CagliariCentro de Aplicaciones Tecnológicas y Desarrollo NuclearUniversity of JyväskyläSaha Institute of Nuclear PhysicsLyon 1 UniversitéPusan National UniversityUniversity of Cape TownLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesInstitut de PhysiqueOak Ridge National LaboratoryUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Universidade Federal do ABCInstitute of Physics, BhubaneshwarInstitute of Space Science - INFLPR SubsidiaryIndian Institute of Technology IndoreUniversity of SalernoFrankfurt Institute for Advanced StudiesNational Centre for Nuclear ResearchUniversity of ZagrebInstitute for Nuclear ResearchUniversity of TriesteNational and Kapodistrian University of AthensChicago State UniversityUniversidade Federal do Rio Grande do SulUniversity of SplitWarsaw University of TechnologyA. Alikhanyan National LaboratoryThe University of TokyoNagasaki Institute of Applied ScienceWestern Norway University of Applied SciencesCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalSejong UniversitySlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesYonsei UniversityKTO Karatay UniversityUniversity of Applied Sciences WormsJeonbuk National UniversityCalifornia Polytechnic State UniversitySuranaree University of TechnologyUniversity of South-Eastern NorwayChina Institute of Atomic EnergyUniversity of the WitwatersrandFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicUniversity of FoggiaIstituto Nazionale di Fisica Nucleare, Sezione di Roma IComenius University BratislavaBudker Institute of Nuclear PhysicsUniversity of RajasthanNational Nuclear Research CenterUniversity of TübingenHiroshima UniversityNara Women's UniversityShanghai Institute of Applied PhysicsIndonesian Institute of SciencesCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules

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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