Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN =2.76  TeV

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dc.citation.firstpage42301en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber110en_US
dc.contributor.authorAdair, A.en_US
dc.contributor.authorBoulahouache, C.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.accessioned2015-09-09T17:08:49Zen_US
dc.date.available2015-09-09T17:08:49Zen_US
dc.date.issued2013en_US
dc.description.abstractFirst measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of √sNN=2.76  TeV are presented. The amplitudes of the second Fourier component (v2) of the π0 azimuthal distributions are extracted using an event-plane technique. The values of v2 are studied as a function of the neutral pion transverse momentum (pT) for different classes of collision centrality in the kinematic range 1.6<pT<8.0  GeV/c, within the pseudorapidity interval |η|<0.8. The CMS measurements of v2(pT) are similar to previously reported π0 azimuthal anisotropy results from √sNN=200  GeV Au-Au collisions at RHIC, despite a factor of ∼14 increase in the center-of-mass energy. In the momentum range 2.5<pT<5.0  GeV/c, the neutral pion anisotropies are found to be smaller than those observed by CMS for inclusive charged particles.en_US
dc.identifier.citationAdair, A., Boulahouache, C., Ecklund, K.M., et al.. "Measurement of the Azimuthal Anisotropy of Neutral Pions in Pb-Pb Collisions at √sNN =2.76  TeV." <i>Physical Review Letters,</i> 110, no. 4 (2013) American Physical Society: 42301. http://dx.doi.org/10.1103/PhysRevLett.110.042301.en_US
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.110.042301en_US
dc.identifier.urihttps://hdl.handle.net/1911/81632en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
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.titleMeasurement of the Azimuthal Anisotropy of Neutral Pions 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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