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Accès ouvert déclaré 2012 article

Transverse sphericity of primary charged particles in minimum bias proton–proton collisions at $\mathbf{\sqrt{s}=0.9},~\mathbf{2.76}~\mbox{and}~\mathbf{7}~\mbox{TeV}$

63Citations signalées, ce qui n’est pas une note de qualité
82Institutions déclarées
28Pays d’affiliation déclarés

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

Le résumé fourni par la source

Measurements of the sphericity of primary charged particles in minimum bias proton-proton collisions at √ s = 0.9, 2.76 and 7 TeV with the ALICE detector at the LHC are presented.The observable is measured in the plane perpendicular to the beam direction using primary charged tracks with p T > 0.5 GeV/c in |η| < 0.8.The mean sphericity as a function of the charged particle multiplicity at mid-rapidity (N ch ) is reported for events with different p T scales ("soft" and "hard") defined by the transverse momentum of the leading particle.In addition, the mean charged particle transverse momentum versus multiplicity is presented for the different event classes, and the sphericity distributions in bins of multiplicity are presented.The data are compared with calculations of standard Monte Carlo event generators.The transverse sphericity is found to grow with multiplicity at all collision energies, with a steeper rise at low N ch , whereas the event generators show an opposite tendency.The combined study of the sphericity and the mean p T with multiplicity indicates that most of the tested event generators produce events with higher multiplicity by generating more back-to-back jets resulting in decreased sphericity (and isotropy).The PYTHIA6 generator with tune PERUGIA-2011 exhibits a noticeable improvement in describing the data, compared to the other tested generators.

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 ; titre concordant.

Titre Crossref
Transverse sphericity of primary charged particles in minimum bias proton–proton collisions at $\mathbf{\sqrt{s}=0.9},~\mathbf{2.76}~\mbox{and}~\mathbf{7}~\mbox{TeV}$
Date Crossref
01/09/2012
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

Lawrence Livermore National LaboratoryEuropean Organization for Nuclear ResearchCzech Technical University in PragueCzech Academy of SciencesYale UniversityPanjab UniversityHungarian Academy of SciencesUniversidad Nacional Autónoma de MéxicoVariable Energy Cyclotron CentreAligarh Muslim UniversityUniversité Clermont AuvergneWestern Norway University of Applied SciencesUniversity of BergenSt Petersburg UniversityGSI Helmholtz Centre for Heavy Ion ResearchHeidelberg UniversityUniversity of MünsterThe Ohio State UniversityNantes UniversitéGoethe University FrankfurtUniversité Grenoble AlpesUniversidade de Santiago de CompostelaOak Ridge National LaboratoryUniversity of HelsinkiSlovak Academy of SciencesInstitute of Physics, BhubaneshwarUniversity of CataniaUniversity of BirminghamPolish Academy of SciencesJoint Institute for Nuclear ResearchUniversity of CopenhagenUniversité de StrasbourgUniversity of HoustonUniversity of JammuUniversity of TsukubaUniversity of PaduaUtrecht UniversityInstitute of Engineering PhysicsNational Research Nuclear University MEPhIWayne State UniversitySaha Institute of Nuclear PhysicsUniversité Paris-SudLawrence Berkeley National LaboratoryPurdue University West LafayetteComenius University BratislavaUniversity of Cape TownCentral China Normal UniversityPontificia Universidad Católica del PerúInstituto Politécnico NacionalBenemérita Universidad Autónoma de PueblaUniversidade de São PauloYonsei UniversityCreighton UniversityLyon 1 UniversitéUniversidade Estadual de Campinas (UNICAMP)Lund UniversityPusan National UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Indian Institute of Technology BombayUniversity of OsloChicago State UniversityWarsaw University of TechnologyUniversidad Autónoma de SinaloaUniversity of RajasthanUniversity of SplitThe University of TokyoSejong UniversityKorea Institute of Science & Technology InformationGangneung–Wonju National UniversityTechnische Universität DarmstadtYıldız Technical UniversityUniversity of Applied Sciences WormsCalifornia Polytechnic State UniversityThe University of Texas at AustinUniversity of Tennessee at KnoxvilleSapienza University of RomeBudker Institute of Nuclear PhysicsUniversity of WrocławIndian Institute of Technology IndoreHiroshima UniversityUniversity of TübingenNational and Kapodistrian University of Athens

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

Les sujets associés

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

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