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dc.date.accessioned2017-10-13T14:12:04Z
dc.date.available2017-10-13T14:12:04Z
dc.date.created2013-09-18T20:01:15Z
dc.date.issued2013
dc.identifier.citationAlme, Johan Erdal, Hege Austrheim Helstrup, Håvard Hetland, Kristin Fanebust Kileng, Bjarte Altinpinar, Sedat Djuvsland, Øystein Fehlker, Dominik Haaland, Øystein Senneset Huang, Meidana Langøy, Rune Larsen, Dag Toppe Lien, Jørgen Liu, Lijiao Lønne, Per-Ivar Nystrand, Joakim Rehman, Attiq ur Røed, Ketil Røhrich, Dieter Skjerdal, Kyrre Ullaland, Kjetil Wagner, Boris Yang, Shiming Dordic, Olja Eyyubova, Gyulnara Kværnø, Henning Lindal, Svein Løvhøiden, Gunnar Milosevic, Jovan Nilsson, Mads Stormo Qvigstad, Henrik Richter, Matthias Skaali, Toralf Bernhard Tveter, Trine Spedstad Wikne, Jon Christopher Abelev, Betty Adam, Jaroslav Adamová, Dagmar Adare, Andrew Marshall Aggarwal, Madan M. Aglieri Rinella, Gianluca Agocs, Andreas Gabor Agostinelli, Andrea Aguilar Salazar, Saul Ahammed, Zubayer Ahmad, Nazeer Ahmad Masoodi, Arshar Ahn, Sang Un Akindinov, Alexander Aleksandrov, Dimitry ALICE, Collaboration . Charge correlations using the balance function in Pb-Pb collisions at root s(NN)=2.76 TeV. Physics Letters B. 2013, 723(4-5), 267-279
dc.identifier.urihttp://hdl.handle.net/10852/58775
dc.description.abstractIn high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric charge balance function in the relative pseudorapidity (Δη) and azimuthal angle (Δφ) in Pb–Pb collisions at sNN=2.76TeV with the ALICE detector at the Large Hadron Collider. The width of the balance function decreases with growing centrality (i.e. for more central collisions) in both projections. This centrality dependence is not reproduced by HIJING, while AMPT, a model which incorporates strings and parton rescattering, exhibits qualitative agreement with the measured correlations in Δφ but fails to describe the correlations in Δη. A thermal blast-wave model incorporating local charge conservation and tuned to describe the pT spectra and v2 measurements reported by ALICE, is used to fit the centrality dependence of the width of the balance function and to extract the average separation of balancing charges at freeze-out. The comparison of our results with measurements at lower energies reveals an ordering with sNN: the balance functions become narrower with increasing energy for all centralities. This is consistent with the effect of larger radial flow at the LHC energies but also with the late stage creation scenario of balancing charges. However, the relative decrease of the balance function widths in Δη and Δφ with centrality from the highest SPS to the LHC energy exhibits only small differences. This observation cannot be interpreted solely within the framework where the majority of the charge is produced at a later stage in the evolution of the heavy-ion collision.en_US
dc.languageEN
dc.publisherNorth-Holland
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleCharge correlations using the balance function in Pb-Pb collisions at root s(NN)=2.76 TeVen_US
dc.typeJournal articleen_US
dc.creator.authorAlme, Johan
dc.creator.authorErdal, Hege Austrheim
dc.creator.authorHelstrup, Håvard
dc.creator.authorHetland, Kristin Fanebust
dc.creator.authorKileng, Bjarte
dc.creator.authorAltinpinar, Sedat
dc.creator.authorDjuvsland, Øystein
dc.creator.authorFehlker, Dominik
dc.creator.authorHaaland, Øystein Senneset
dc.creator.authorHuang, Meidana
dc.creator.authorLangøy, Rune
dc.creator.authorLarsen, Dag Toppe
dc.creator.authorLien, Jørgen
dc.creator.authorLiu, Lijiao
dc.creator.authorLønne, Per-Ivar
dc.creator.authorNystrand, Joakim
dc.creator.authorRehman, Attiq ur
dc.creator.authorRøed, Ketil
dc.creator.authorRøhrich, Dieter
dc.creator.authorSkjerdal, Kyrre
dc.creator.authorUllaland, Kjetil
dc.creator.authorWagner, Boris
dc.creator.authorYang, Shiming
dc.creator.authorDordic, Olja
dc.creator.authorEyyubova, Gyulnara
dc.creator.authorKværnø, Henning
dc.creator.authorLindal, Svein
dc.creator.authorLøvhøiden, Gunnar
dc.creator.authorMilosevic, Jovan
dc.creator.authorNilsson, Mads Stormo
dc.creator.authorQvigstad, Henrik
dc.creator.authorRichter, Matthias
dc.creator.authorSkaali, Toralf Bernhard
dc.creator.authorTveter, Trine Spedstad
dc.creator.authorWikne, Jon Christopher
dc.creator.authorAbelev, Betty
dc.creator.authorAdam, Jaroslav
dc.creator.authorAdamová, Dagmar
dc.creator.authorAdare, Andrew Marshall
dc.creator.authorAggarwal, Madan M.
dc.creator.authorAglieri Rinella, Gianluca
dc.creator.authorAgocs, Andreas Gabor
dc.creator.authorAgostinelli, Andrea
dc.creator.authorAguilar Salazar, Saul
dc.creator.authorAhammed, Zubayer
dc.creator.authorAhmad, Nazeer
dc.creator.authorAhmad Masoodi, Arshar
dc.creator.authorAhn, Sang Un
dc.creator.authorAkindinov, Alexander
dc.creator.authorAleksandrov, Dimitry
dc.creator.authorALICE, Collaboration
cristin.unitcode185,15,4,0
cristin.unitnameFysisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1050344
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physics Letters B&rft.volume=723&rft.spage=267&rft.date=2013
dc.identifier.jtitlePhysics Letters B
dc.identifier.volume723
dc.identifier.issue4-5
dc.identifier.startpage267
dc.identifier.endpage279
dc.identifier.doihttp://dx.doi.org/10.1016/j.physletb.2013.05.039
dc.identifier.urnURN:NBN:no-61487
dc.subject.nviVDP::Kjerne- og elementærpartikkelfysikk: 431
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn0370-2693
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/58775/2/Charge%2Bcorrelations%2Busing%2Bthe%2Bbalance%2Bfunction%2Bin%2BPb-Pb%2Bcollisions%2Bat%2Broot%2Bs%2528NN%2529%253D2.76%2BTeV.pdf
dc.type.versionPublishedVersion


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