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dc.contributor.authorALICE Collaboration
dc.date.accessioned2016-07-06T06:47:07Z
dc.date.available2016-07-06T06:47:07Z
dc.date.issued2016
dc.identifier.citationALICE Collaboration. (2016). Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at √sNN = 5.02 TeV. <i>Physical Review Letters</i>, <i>116</i>(22), Article 222302. <a href="https://doi.org/10.1103/PhysRevLett.116.222302" target="_blank">https://doi.org/10.1103/PhysRevLett.116.222302</a>
dc.identifier.otherCONVID_26094370
dc.identifier.otherTUTKAID_70519
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/50729
dc.description.abstractThe pseudorapidity density of charged particles, dNch=dη, at midrapidity in Pb-Pb collisions has been measured at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV. For the 5% most central collisions, we measure a value of 1943±54. The rise in dNch=dη as a function of √sNN is steeper than that observed in proton-proton collisions and follows the trend established by measurements at lower energy. The increase of dNch=dη as a function of the average number of participant nucleons, hNparti, calculated in a Glauber model, is compared with the previous measurement at √sNN=2.76 TeV. A constant factor of about 1.2 describes the increase in dNch=dη from √sNN=2,76 to 5.02 TeV for all centrality classes, within the measured range of 0%–80% centrality. The results are also compared to models based on different mechanisms for particle production in nuclear collisions.
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review Letters
dc.subject.otherhigh energy physics
dc.subject.othertellurium compounds
dc.subject.othercharged particle multiplicities
dc.subject.otherconstant factors
dc.subject.otherdifferent mechanisms
dc.subject.othernuclear collisions
dc.subject.otherparticle production
dc.subject.otherpb-pb collisions
dc.subject.otherproton proton collisions
dc.subject.otherpseudorapidities
dc.titleCentrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at √sNN = 5.02 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201607053471
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-07-05T09:15:03Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn0031-9007
dc.relation.numberinseries22
dc.relation.volume116
dc.type.versionpublishedVersion
dc.rights.copyright© 2016 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.
dc.rights.accesslevelopenAccessfi
dc.subject.ysolyijy
jyx.subject.urihttp://www.yso.fi/onto/yso/p15486
dc.rights.urlhttps://creativecommons.org/licenses/by/3.0/
dc.relation.doi10.1103/PhysRevLett.116.222302


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© 2016 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.
Except where otherwise noted, this item's license is described as © 2016 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License.