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dc.contributor.authorAbelev, Betty
dc.contributor.authorAdam, Jaroslav
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAgnello, Michelangelo
dc.contributor.authorAgostinelli, Andrea
dc.contributor.authorAgrawal, Nikita
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAhmad, Nazeer
dc.contributor.authorAhmed, Ijaz
dc.contributor.authorAlme, Johan
dc.contributor.authorErdal, Hege Austrheim
dc.contributor.authorHelstrup, Håvard
dc.contributor.authorHetland, Kristin Fanebust
dc.contributor.authorKileng, Bjarte
dc.contributor.authorAltinpinar, Sedat
dc.contributor.authorDjuvsland, Øystein
dc.contributor.authorFehlker, Dominik
dc.contributor.authorHaaland, Øystein Senneset
dc.contributor.authorHuang, Meidana
dc.contributor.authorLønne, Per-Ivar
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq ur
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorSkjerdal, Kyrre
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorVelure, Arild
dc.contributor.authorWagner, Boris
dc.contributor.authorYang, Shiming
dc.contributor.authorZhou, Zhuo
dc.contributor.authorArsene, Ionut Christian
dc.contributor.authorBätzing, Paul Christoph
dc.contributor.authorDordic, Olja
dc.contributor.authorLindal, Svein
dc.contributor.authorMahmood, Sohail Musa
dc.contributor.authorMilosevic, Jovan
dc.contributor.authorQvigstad, Henrik
dc.contributor.authorRichter, Matthias Rudolph
dc.contributor.authorRøed, Ketil
dc.contributor.authorSkaali, Toralf Bernhard
dc.contributor.authorTveter, Trine Spedstad
dc.contributor.authorWikne, Jon Christopher
dc.contributor.authorZhao, Chengxin
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen André
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAhn, Sul-Ah
dc.contributor.authorAimo, Ilaria
dc.contributor.authorAiola, Salvatore
dc.contributor.authorAjaz, Muhammad
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2015-12-21T09:17:22Z
dc.date.available2015-12-21T09:17:22Z
dc.date.issued2015-06-29
dc.PublishedJournal of High Energy Physics (JHEP) 2015, 2015:190eng
dc.identifier.issn1029-8479en_US
dc.identifier.urihttps://hdl.handle.net/1956/10782
dc.description.abstractThe elliptic flow coefficient \(v_{2}\) of identified particles in Pb--Pb collisions at \(\sqrt{s_\mathrm{{NN}}} = 2.76\) TeV was measured with the ALICE detector at the LHC. The results were obtained with the Scalar Product method, a two-particle correlation technique, using a pseudo-rapidity gap of \(|\Delta\eta| > 0.9\) between the identified hadron under study and the reference particles. The \(v_2\) is reported for \(\pi^{\pm}\). \(\mathrm{K}^{\pm}\). \(\mathrm{K}^0_\mathrm{S}\). p+\).overline{\mathrm{p}}\). \(\mathrm{\phi}\). \(\Lambda\).\).overline{\mathrm{\Lambda}}\). \(\Xi^-\).\).overline{\Xi}^+\) and \(\Omega^-\).\).overline{\Omega}^+\) in several collision centralities. In the low transverse momentum \(p_{\mathrm{T}}\) region, \(p_{\mathrm{T}} < 2 \(GeV/\).\). \(v_2(p_\mathrm{T})\) exhibits a particle mass dependence consistent with elliptic flow accompanied by the transverse radial expansion of the system with a common velocity field. The experimental data for \(\pi^{\pm}\) and \(\mathrm{K}\) are described fairly well by hydrodynamical calculations coupled to a hadronic cascade model (VISHNU) for central collisions. However, the same calculations fail to reproduce the \(v_2(p_\mathrm{T})\) for p+\).overline{\mathrm{p}}\). \(\mathrm{\phi}\). \(\Lambda\).\).overline{\mathrm{\Lambda}}\) and \(\Xi^-\).\).overline{\Xi}^+\). For transverse momentum values larger than about 3 GeV/\).\). particles tend to group according to their type, i.e. mesons and baryons. However, the experimental data at the LHC exhibit deviations from the number of constituent quark (NCQ) scaling at the level of \(\pm\).0\).\) for \(p_{\mathrm{T}} > 3 \(GeV/\).\).en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.subjectParticle correlations and fluctuationseng
dc.subjectHeavy Ionseng
dc.titleElliptic flow of identified hadrons in Pb-Pb collisions at \(\sqrt{s_{\rm{NN}}}\) = 2.76 TeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-11-09T08:59:07Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright CERN, for the benefit of the ALICE Collaborationen_US
dc.identifier.doihttps://doi.org/10.1007/jhep06(2015)190
dc.identifier.cristin1266344
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400en_US


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