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dc.contributor.authorALICE Collaboration
dc.date.accessioned2016-04-05T09:47:50Z
dc.date.available2016-04-05T09:47:50Z
dc.date.issued2016
dc.identifier.citationALICE Collaboration. (2016). Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb–Pb collisions at √sNN = 2.76 TeV. <i>Physics Letters B</i>, <i>754</i>, 373-385. <a href="https://doi.org/10.1016/j.physletb.2015.12.082" target="_blank">https://doi.org/10.1016/j.physletb.2015.12.082</a>
dc.identifier.otherCONVID_25634624
dc.identifier.otherTUTKAID_69651
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/49254
dc.description.abstractThe centrality dependence of the charged-particle pseudorapidity density measured with ALICE in Pb–Pb collisions at √sNN = 2.76 TeV over a broad pseudorapidity range is presented. This Letter extends the previous results reported by ALICE to more peripheral collisions. No strong change of the overall shape of charged-particle pseudorapidity density distributions with centrality is observed, and when normalised to the number of participating nucleons in the collisions, the evolution over pseudorapidity with centrality is likewise small. The broad pseudorapidity range (−3.5 < η < 5) allows precise estimates of the total number of produced charged particles which we find to range from 162 ± 22(syst.) to 17170 ± 770(syst.) in 80–90% and 0–5% central collisions, respectively. The total charged-particle multiplicity is seen to approximately scale with the number of participating nucleons in the collision. This suggests that hard contributions to the charged-particle multiplicity are limited. The results are compared to models which describe dNch/dη at mid-rapidity in the most central Pb–Pb collisions and it is found that these models do not capture all features of the distributions.
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofseriesPhysics Letters B
dc.subject.otherPb–Pb collisions
dc.subject.otherpseudorapidity
dc.subject.othercentrality
dc.titleCentrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb–Pb collisions at √sNN = 2.76 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201604052005
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-04-05T09:15:10Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange373-385
dc.relation.issn0370-2693
dc.relation.numberinseries0
dc.relation.volume754
dc.type.versionpublishedVersion
dc.rights.copyright© 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.physletb.2015.12.082


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© 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
Except where otherwise noted, this item's license is described as © 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.