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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.authorLangøy, Rune
dc.contributor.authorLien, Jørgen
dc.contributor.authorLønne, Per-Ivar
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq ur
dc.contributor.authorRøed, Ketil
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorSkjerdal, Kyrre
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorWagner, Boris
dc.contributor.authorYang, Shiming
dc.contributor.authorDordic, Olja
dc.contributor.authorEyyubova, Gyulnara
dc.contributor.authorKværnø, Henning
dc.contributor.authorLindal, Svein
dc.contributor.authorLøvhøiden, Gunnar
dc.contributor.authorMilosevic, Jovan
dc.contributor.authorNilsson, Mads Stormo
dc.contributor.authorQvigstad, Henrik
dc.contributor.authorRichter, Matthias
dc.contributor.authorSkaali, Toralf Bernhard
dc.contributor.authorTveter, Trine Spedstad
dc.contributor.authorWikne, Jon Christopher
dc.contributor.authorAbbas, Eham Gamal
dc.contributor.authorAbelev, Betty
dc.contributor.authorAdam, Jaroslav
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAdare, Andrew Marshall
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAguilar Salazar, Saul
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAhmad, Nazeer
dc.contributor.authorAhmad Masoodi, Arshar
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAjaz, Muhammad
dc.contributor.authorAkindinov, Alexander
dc.contributor.authorAleksandrov, Dimitry
dc.contributor.authorAlessandro, Bruno
dc.contributor.authorAlici, Andrea
dc.contributor.authorAlkin, Anton
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2017-12-19T14:04:12Z
dc.date.available2017-12-19T14:04:12Z
dc.date.issued2013-11
dc.PublishedAlme J, Erdal HA, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Langøy R, Lien JA, Lønne P, Nystrand J, Rehman Au, Røed K, Røhrich D, Skjerdal K, Ullaland K, Wagner B, Yang S, Dordic O, Eyyubova G, Kværnø H, Lindal S, Løvhøiden G, Milosevic J, Nilsson MS, Qvigstad H, Richter M, Skaali TB, Tveter TS, Wikne JC, Abbas EG, Abelev B, Adam J, Adamová D, Adare AM, Aggarwal MM, Aguilar Salazar S, Ahammed Z, Ahmad N, Ahmad Masoodi A, Ahn SU, Ajaz, Akindinov A, Aleksandrov D, Alessandro B, Alici A, Alkin A, ALICE C. Charmonium and e(+)e(-) pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV. European Physical Journal C. 2013;73:2617eng
dc.identifier.issn1434-6044en_US
dc.identifier.issn1434-6052en_US
dc.identifier.urihttps://hdl.handle.net/1956/17041
dc.description.abstractThe ALICE Collaboration at the LHC has measured the \(J/\psi\) and \(\psi\)' photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeV. The charmonium is identified via its leptonic decay for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 23 \({\mu}b^{-1}\), The cross section for coherent and incoherent \(J/\psi\) production in the rapidity interval -0.9 < y < 0.9, are \(d\sigma_{J/\psi}^{coh}/dy = 2.38^{+0.34}_{-0.24}(sta+sys)\) mb and \(d\sigma_{J/\psi}^{inc}/dy = 0.98^{+0.19}_{-0.17}(sta+sys)\) mb, respectively. The results are compared to theoretical models for \(J/\psi\) production and the coherent cross section is found to be in good agreement with those models which include nuclear gluon shadowing consistent with EPS09 parametrization. In addition the cross section for the process \(\gamma\gamma \to e^+e^-\) has been measured and found to be in agreement with the STARLIGHT Monte Carlo predictions.en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.relation.urihttp://link.springer.com/article/10.1140/epjc/s10052-013-2617-1
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.titleCharmonium and \(e^+e^-\) pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2017-11-28T10:00:42Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright CERN for the benefit of the ALICE collaboration 2013en_US
dc.identifier.doihttps://doi.org/10.1140/epjc/s10052-013-2617-1
dc.identifier.cristin1075841
dc.source.journalEuropean Physical Journal C
dc.relation.projectNorges forskningsråd: 217288
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


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