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Accès ouvert déclaré 2020 article

Probing the Effects of Strong Electromagnetic Fields with Charge-Dependent Directed Flow in Pb-Pb Collisions at the LHC

99Citations signalées, ce qui n’est pas une note de qualité
155Institutions déclarées
36Pays d’affiliation déclarés

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

Le résumé fourni par la source

The first measurement at the LHC of charge-dependent directed flow (${v}_{1}$) relative to the spectator plane is presented for Pb-Pb collisions at $\sqrt{{s}_{\mathrm{NN}}}=5.02\text{ }\text{ }\mathrm{TeV}$. Results are reported for charged hadrons and ${\mathrm{D}}^{0}$ mesons for the transverse momentum intervals ${p}_{\mathrm{T}}>0.2\text{ }\text{ }\mathrm{GeV}/c$ and $3<{p}_{\mathrm{T}}<6\text{ }\text{ }\mathrm{GeV}/c$ in the 5%--40% and 10%--40% centrality classes, respectively. The difference between the positively and negatively charged hadron ${v}_{1}$ has a positive slope as a function of pseudorapidity $\ensuremath{\eta}$, $\mathrm{d}\mathrm{\ensuremath{\Delta}}{v}_{1}/\mathrm{d}\ensuremath{\eta}=\phantom{\rule{0ex}{0ex}}[1.68\ifmmode\pm\else\textpm\fi{}0.49(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.41(\mathrm{syst})]\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$. The same measurement for ${\mathrm{D}}^{0}$ and ${\overline{\mathrm{D}}}^{0}$ mesons yields a positive value $\mathrm{d}\mathrm{\ensuremath{\Delta}}{v}_{1}/\mathrm{d}\ensuremath{\eta}=[4.9\ifmmode\pm\else\textpm\fi{}1.7(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.6(\mathrm{syst})]\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}1}$, which is about 3 orders of magnitude larger than the one of the charged hadrons. These measurements can provide new insights into the effects of the strong electromagnetic field and the initial tilt of matter created in noncentral heavy ion collisions on the dynamics of light (u, d, and s) and heavy (c) quarks. The large difference between the observed $\mathrm{\ensuremath{\Delta}}{v}_{1}$ of charged hadrons and ${\mathrm{D}}^{0}$ mesons may reflect different sensitivity of the charm and light quarks to the early time dynamics of a heavy ion collision. These observations challenge some recent theoretical calculations, which predicted a negative and an order of magnitude smaller value of $\mathrm{d}\mathrm{\ensuremath{\Delta}}{v}_{1}/\mathrm{d}\ensuremath{\eta}$ for both light flavor and charmed hadrons.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Probing the Effects of Strong Electromagnetic Fields with Charge-Dependent Directed Flow in Pb-Pb Collisions at the LHC
Date Crossref
06/07/2020
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 InstituteCzech Academy of Sciences, Nuclear Physics InstituteGoethe University FrankfurtLund UniversityPanjab UniversityEuropean Organization for Nuclear ResearchPolitecnico di TorinoCentro Ricerche Enrico FermiIstituto Nazionale di Fisica Nucleare, Sezione di BolognaAligarh Muslim UniversityKorea Institute of Science & Technology InformationKurchatov InstituteGSI Helmholtz Centre for Heavy Ion ResearchUniversidade Estadual de Campinas (UNICAMP)Istituto Nazionale di Fisica Nucleare, Sezione di TorinoCentral China Normal UniversityUniversidad Nacional Autónoma de MéxicoCOMSATS University IslamabadOsservatorio astronomico 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 OsloUniversité Paris-SaclayInstitut de PhysiqueIstituto Nazionale di Fisica Nucleare, Sezione di CataniaGangneung–Wonju National UniversityUniversity of JammuCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversity of BonnTechnical University of MunichUniversity of CataniaUniversity of TurinHUN-REN Wigner Research Centre for PhysicsDaresbury LaboratoryUniversité Clermont AuvergneWayne State UniversityJoint Institute for Nuclear ResearchIndian Institute of Technology BombayPontificia Universidad Católica del PerúUniversity of CopenhagenUtrecht UniversityNational Institute for Subatomic PhysicsInha UniversityInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgInstitute of Engineering PhysicsNational Research Nuclear University MEPhIPetersburg Nuclear Physics InstituteUniversity of Tennessee at KnoxvilleInstitute of Space Science - INFLPR SubsidiaryBose InstituteIndian Centre for Space PhysicsGauhati UniversityIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiCzech Technical University in PragueExcellence Cluster UniverseThe University of Texas at AustinUniversity of PaviaOak Ridge National LaboratoryUniversity of CagliariIstituto Nazionale di Fisica Nucleare, Sezione di CagliariUniversity of Pavol Jozef ŠafárikUniversity of BresciaYale UniversityHospital Universitário da Universidade de São PauloHelsinki Institute of PhysicsPolytechnic University of BariUniversity of LiverpoolAll-Russian Scientific Research Institute of Technical PhysicsStefan Meyer Institute for Subatomic PhysicsUniversity of the WitwatersrandNational Research FoundationThe Ohio State UniversityInstitute of Nuclear Physics, Polish Academy of SciencesBenemérita Universidad Autónoma de PueblaUniversity of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Sezione di BariSaha Institute of Nuclear PhysicsLyon 1 UniversitéUniversity of TsukubaUniversity of Cape TownLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Universidade Federal do ABCWarsaw University of TechnologyNational Institute of Science Education and ResearchUniversity of SalernoFrankfurt Institute for Advanced StudiesIndian Institute of Technology IndoreNational Centre for Nuclear ResearchCentro de Aplicaciones Tecnológicas y Desarrollo NuclearUniversity of California, BerkeleyInstitute for Nuclear ResearchUniversity of ZagrebUniversidad Autónoma de SinaloaNational and Kapodistrian University of AthensChicago State UniversityNational Nuclear Research CenterUniversidade Federal do Rio Grande do SulUniversity of SplitA. Alikhanyan National LaboratoryThe University of TokyoNagasaki Institute of Applied ScienceWestern Norway University of Applied SciencesCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalTechnical University of KošiceSlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesKTO Karatay UniversityUniversity of Applied Sciences WormsYonsei UniversityUniversity of JyväskyläJeonbuk National UniversityPusan National UniversitySejong UniversityCalifornia Polytechnic State UniversitySuranaree University of TechnologyUniversity of South-Eastern NorwayChina Institute of Atomic EnergyFudan UniversityFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicUniversity of FoggiaIstituto Nazionale di Fisica Nucleare, Sezione di Roma ISapienza University of RomeComenius University BratislavaBudker Institute of Nuclear PhysicsUniversity of RajasthanInstitute of Physics, BhubaneshwarUniversity of TübingenHiroshima UniversityNara Women's UniversityIndonesian Institute of SciencesCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesUniversity of Science and Technology of China

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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