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dc.contributor.authorAcharya, Shreyasi
dc.contributor.authorAcosta, Fernando Torales
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAdolfsson, Jonatan
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAglieri Rinella, Gianluca
dc.contributor.authorAgnello, Michelangelo
dc.contributor.authorAgrawal, Nikita
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAlme, Johan
dc.contributor.authorAltenkaemper, Lucas
dc.contributor.authorDjuvsland, Øystein
dc.contributor.authorErsdal, Magnus Rentsch
dc.contributor.authorFionda, Fiorella Maria Celeste
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq ur
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorTambave, Ganesh Jagannath
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorWagner, Boris
dc.contributor.authorZhou, Zhuo
dc.contributor.authorArsene, Ionut Cristian
dc.contributor.authorBätzing, Paul Christoph
dc.contributor.authorDordic, Olja
dc.contributor.authorLardeux, Antoine Xavier
dc.contributor.authorLindal, Svein
dc.contributor.authorMahmood, Sohail Musa
dc.contributor.authorMalik, Qasim Waheed
dc.contributor.authorRichter, Matthias
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.authorHelstrup, Håvard
dc.contributor.authorHetland, Kristin Fanebust
dc.contributor.authorKileng, Bjarte
dc.contributor.authorNesbø, Simon Voigt
dc.contributor.authorStoretvedt, Maksim Melnik
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen André
dc.contributor.authorAiola, Salvatore
dc.contributor.authorAkindinov, Alexander
dc.contributor.authorAl-Turany, Mohammed
dc.contributor.authorAlam, Sk Noor
dc.contributor.authorDe Albuquerque, Danilo Silva
dc.contributor.authorAleksandrov, Dimitry
dc.contributor.authorAlessandro, Bruno
dc.contributor.authorAlfaro Molina, José Rubén
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2019-08-23T14:38:18Z
dc.date.available2019-08-23T14:38:18Z
dc.date.issued2019-02-14
dc.identifier.citationAcharya S, Acosta, Adamová D, Adolfsson J, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn SU, Alme J, Altenkaemper L, Djuvsland Ø, Ersdal MR, Fionda FMC, Nystrand J, Rehman Au, Røhrich D, Tambave GJ, Ullaland K, Wagner B, Zhou Z, Arsene IC, Bätzing P, Dordic O, Lardeux A, Lindal S, Mahmood SM, Malik QW, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Helstrup H, Hetland KF, Kileng B, Nesbø SV, Storetvedt M, Langøy R, Lien JA, Aiola S, Akindinov A, Al-Turany M, Alam SN, De Albuquerque DS, Aleksandrov D, Alessandro B, Alfaro Molina JR, ALICE C. Measurement of dielectron production in central Pb-Pb collisions at √sNN=2.76 TeV. Physical Review C. 2019;99:024002:1-23eng
dc.identifier.urihttp://hdl.handle.net/1956/20725
dc.description.abstractThe first measurement of dielectron (e+e−) production in central (0–10%) Pb–Pb collisions at √sNN=2.76TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron decays in the invariant-mass range 0<mee<3.5GeV/c2. The ratio of data and the cocktail of hadronic contributions without vacuum ρ0 is measured in the invariant-mass range 0.15<mee<0.7GeV/c2, where an excess of dielectrons is observed in other experiments, and its value is 1.40±0.28(stat.)±0.08(syst.)±0.27(cocktail). The dielectron spectrum measured in the invariant mass range 0<mee<1GeV/c2 is consistent with the predictions from two theoretical model calculations that include thermal dielectron production from both partonic and hadronic phases with in-medium broadened ρ0 meson. The fraction of direct virtual photons over inclusive virtual photons is extracted for dielectron pairs with invariant mass 0.1<mee<0.3GeV/c2 and in the transverse-momentum intervals 1<pT,ee<2GeV/c and 2<pT,ee<4GeV/c. The measured fraction of virtual direct photons is consistent with the measurement of real direct photons by ALICE and with the expectations from previous dielectron measurements at RHIC within the experimental uncertainties.eng
dc.language.isoengeng
dc.publisherAmerican Physical Societyeng
dc.rightsAttribution CC BYeng
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/eng
dc.subjectParticle & resonance productioneng
dc.subjectPhoton, lepton & quark productioneng
dc.subjectRelativistic heavy-ion collisionseng
dc.titleMeasurement of dielectron production in central Pb-Pb collisions at √sNN=2.76 TeVeng
dc.typeJournal articleeng
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.date.updated2019-05-27T10:23:43Z
dc.rights.holderCopyright 2018 CERN, for the ATLAS Collaborationeng
dc.type.versionpublishedVersioneng
bora.peerreviewedPeer reviewedeng
dc.type.documentJournal article
dc.identifier.cristinID1690288
dc.identifier.doi10.1103/PhysRevC.99.024002eng
dc.source.issn2469-9985eng
dc.relation.journalPhysical Review C


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