Aller au contenu principal
Accès ouvert déclaré 2017 article

Evolution of the longitudinal and azimuthal structure of the near-side jet peak in Pb-Pb collisions at sNN=2.76 TeV

15Citations signalées, ce qui n’est pas une note de qualité
143Institutions déclarées
36Pays d’affiliation déclarés

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

Le résumé fourni par la source

In two-particle angular correlation measurements, jets give rise to a near-side peak, formed by particles associated to a higher-${p}_{\mathrm{T}}$ trigger particle. Measurements of these correlations as a function of pseudorapidity ($\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}$) and azimuthal ($\mathrm{\ensuremath{\Delta}}\ensuremath{\varphi}$) differences are used to extract the centrality and ${p}_{\mathrm{T}}$ dependence of the shape of the near-side peak in the ${p}_{\mathrm{T}}$ range $1<{p}_{\mathrm{T}}<8$ $\mathrm{GeV}/c$ in Pb-Pb and $\mathit{pp}$ collisions at $\sqrt{{s}_{NN}}$ = 2.76 TeV. A combined fit of the near-side peak and long-range correlations is applied to the data and the peak shape is quantified by the variance of the distributions. While the width of the peak in the $\mathrm{\ensuremath{\Delta}}\ensuremath{\varphi}$ direction is almost independent of centrality, a significant broadening in the $\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}$ direction is found from peripheral to central collisions. This feature is prominent for the low-${p}_{\mathrm{T}}$ region and vanishes above $4 \mathrm{GeV}/c$. The widths measured in peripheral collisions are equal to those in $\mathit{pp}$ collisions in the $\mathrm{\ensuremath{\Delta}}\ensuremath{\varphi}$ direction and above $3 \mathrm{GeV}/c$ in the $\mathrm{\ensuremath{\Delta}}\ensuremath{\eta}$ direction. Furthermore, for the 10% most central collisions and $1<{p}_{\mathrm{T},\mathrm{assoc}}<$ $2 \mathrm{GeV}/c, 1<{p}_{\mathrm{T},\mathrm{trig}}<$ $3 \mathrm{GeV}/c$, a departure from a Gaussian shape is found: a depletion develops around the center of the peak. The results are compared to A Multi-Phase Transport (AMPT) model simulation as well as other theoretical calculations indicating that the broadening and the development of the depletion are connected to the strength of radial and longitudinal flow.

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
Evolution of the longitudinal and azimuthal structure of the near-side jet peak in Pb-Pb collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn></mml:mrow></mml:math> TeV
Date Crossref
08/09/2017
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

Czech Technical University in PragueCzech Academy of Sciences, Nuclear Physics InstitutePanjab UniversityEuropean Organization for Nuclear ResearchPolitecnico di TorinoIstituto Nazionale di Fisica Nucleare, Sezione di TorinoIndian Institute of Technology BombayVariable Energy Cyclotron CentreAligarh Muslim UniversityKorea Institute of Science & Technology InformationYale UniversityInstitute for Theoretical and Experimental PhysicsUniversidade Estadual de Campinas (UNICAMP)Kurchatov InstituteUniversity of BirminghamUniversidad Nacional Autónoma de MéxicoCentro Ricerche Enrico FermiIstituto Nazionale di Fisica Nucleare, Sezione di BolognaBogolyubov Institute for Theoretical PhysicsHøgskolen i BergenUniversity of BergenGoethe University FrankfurtFrankfurt Institute for Advanced StudiesHospital Universitário da Universidade de São PauloCentral China Normal UniversityGSI Helmholtz Centre for Heavy Ion ResearchHeidelberg UniversityCreighton UniversityRuđer Bošković InstituteIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of HoustonCentre National de la Recherche ScientifiqueLaboratoire de Physique Subatomique et des Technologies AssociéesInstitut National de Physique Nucléaire et de Physique des ParticulesNantes UniversitéExcellence Cluster UniverseTechnical University of MunichUniversity of OsloIstituto Nazionale di Fisica Nucleare, Sezione di CataniaKonkuk UniversityUniversity of JammuCommissariat à l'Énergie Atomique et aux Énergies AlternativesInstitut de Recherche sur les Lois Fondamentales de l'UniversInstitute of Physics, BhubaneshwarIstituto Nazionale di Fisica Nucleare, Sezione di BariHUN-REN Wigner Research Centre for PhysicsHungarian Academy of SciencesUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneClermont UniversitéInstitute of Nuclear Physics, Polish Academy of SciencesUniversity of MünsterJoint Institute for Nuclear ResearchUniversity of CopenhagenInha UniversityInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgBenemérita Universidad Autónoma de PueblaUniversidad Autónoma de SinaloaInstitute of Engineering PhysicsNational Research Nuclear University MEPhIPetersburg Nuclear Physics InstituteUtrecht UniversityUniversity of Tennessee at KnoxvilleGauhati UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiWayne State UniversityBose InstituteNational Institute of Science Education and ResearchThe University of Texas at AustinLawrence Berkeley National LaboratoryUniversity of Pavol Jozef ŠafárikPusan National UniversityUniversity of LiverpoolPurdue University West LafayetteHelsinki Institute of PhysicsAll-Russian Scientific Research Institute of Technical PhysicsStefan Meyer Institute for Subatomic PhysicsUniversity of TsukubaNational Research FoundationCOMSATS University IslamabadThe Ohio State UniversityTechnical University of KošicePontificia Universidad Católica del PerúIstituto 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 UniversitéNational Institute for Subatomic PhysicsLund UniversityUniversity of Cape TownSlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesUniversité Paris-SudInstitut de PhysiqueOak Ridge National LaboratoryUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Universidade Federal do ABCCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalInstitute of Space Science - INFLPR SubsidiaryIndian Institute of Technology IndoreUniversity of SalernoNational Centre for Nuclear ResearchCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversity of ZagrebUniversidade de Santiago de CompostelaInstitute for Nuclear ResearchNational 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 ScienceUniversity of TübingenCzech Academy of SciencesFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicSejong UniversityYonsei UniversityKTO Karatay UniversityUniversity of Applied Sciences WormsGangneung–Wonju National UniversityCalifornia Polytechnic State UniversitySuranaree University of TechnologyVestfold University CollegeDaresbury LaboratoryChina Institute of Atomic EnergyUniversity of the WitwatersrandIstituto Nazionale di Fisica Nucleare, Sezione di Roma IComenius University BratislavaUniversity of BonnHiroshima UniversityUniversity of BresciaBudker Institute of Nuclear PhysicsUniversity of RajasthanIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di LegnaroIndonesian 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 studiesStatistical Methods and Bayesian Inference

BNTIC News n’est pas le producteur de ces données. Les publications sont interrogées à la demande dans Crossref, OpenAIRE, DOAJ, Europe PMC, HAL, DataCite, AfricArXiv, ROR et la Banque mondiale, sans clé d’accès. OpenAlex reste optionnel. Aucun service payant n’est nécessaire et aucune donnée externe n’est enregistrée en base. Consulter les sources et leurs limites.