Azimuthal Anisotropy of Charged Particles at High Transverse Momenta in Pb-Pb Collisions at √sNN=2.76  TeV

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dc.citation.firstpage22301en_US
dc.citation.issueNumber2en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber109en_US
dc.contributor.authorAdair, A.en_US
dc.contributor.authorBoulahouache, C.en_US
dc.contributor.authorCuplov, V.en_US
dc.contributor.authorEcklund, K.M.en_US
dc.contributor.authorGeurts, F.J.M.en_US
dc.contributor.authorPadley, B.P.en_US
dc.contributor.authorRedjimi, R.en_US
dc.contributor.authorRoberts, J.en_US
dc.contributor.authorZabel, J.en_US
dc.date.accessioned2015-09-03T14:48:30Z
dc.date.available2015-09-03T14:48:30Z
dc.date.issued2012en_US
dc.description.abstractThe azimuthal anisotropy of charged particles in Pb-Pb collisions at √sNN=2.76  TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pT) range up to approximately 60  GeV/c. The data cover both the low-pT region associated with hydrodynamic flow phenomena and the high-pT region where the anisotropies may reflect the path-length dependence of parton energy loss in the created medium. The anisotropy parameter (v2) of the particles is extracted by correlating charged tracks with respect to the event-plane reconstructed by using the energy deposited in forward-angle calorimeters. For the six bins of collision centrality studied, spanning the range of 0–60% most-central events, the observed v2 values are found to first increase with pT, reaching a maximum around pT=3  GeV/c, and then to gradually decrease to almost zero, with the decline persisting up to at least pT=40  GeV/c over the full centrality range measured.en_US
dc.identifier.citationAdair, A., Boulahouache, C., Cuplov, V., et al.. "Azimuthal Anisotropy of Charged Particles at High Transverse Momenta in Pb-Pb Collisions at √sNN=2.76  TeV." <i>Physical Review Letters,</i> 109, no. 2 (2012) American Physical Society: 22301. http://dx.doi.org/10.1103/PhysRevLett.109.022301.
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.109.022301en_US
dc.identifier.urihttps://hdl.handle.net/1911/81622
dc.language.isoengen_US
dc.publisherAmerican Physical Society
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.titleAzimuthal Anisotropy of Charged Particles at High Transverse Momenta in Pb-Pb Collisions at √sNN=2.76  TeVen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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