Measurement of the Correlation Between Flow Harmonics of Different Order in Lead-Lead Collisions at √s̅(NN) = 2.76 TeV with the ATLAS Detector

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dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbolins, M.en_US
dc.contributor.authorAbouzeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2016-07-20T21:36:40Z
dc.date.available2016-07-20T21:36:40Z
dc.date.created2015-09-14en_US
dc.date.issued2015-09-14en_US
dc.description.abstractCorrelations between the elliptic or triangular flow coefficients ν_m (m=2 or 3) and other flow harmonics ν_n (n=2 to 5) are measured using \sqrt {s_{NN}}=2.76 TeV Pb+Pb collision data collected in 2010 by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 7 μb⁻¹. The ν_m - ν_n correlations are measured in midrapidity as a function of centrality, and, for events within the same centrality interval, as a function of event ellipticity or triangularity defined in a forward rapidity region. For events within the same centrality interval, ν₃ is found to be anticorrelated with ν₂ and this anticorrelation is consistent with similar anticorrelations between the corresponding eccentricities, ε₂ and ε₃. However, it is observed that ν₄ increases strongly with ν₂, and ν₅ increases strongly with both ν₂ and ν₃. The trend and strength of the ν_m-ν_n correlations for n=4 and 5 are found to disagree with ε_m-ε_n correlations predicted by initial-geometry models. Instead, these correlations are found to be consistent with the combined effects of a linear contribution to ν_n and a nonlinear term that is a function of v_2^2 or of v₂v₃, as predicted by hydrodynamic models. A simple two-component fit is used to separate these two contributions. The extracted linear and nonlinear contributions to ν₄ and ν₅ are found to be consistent with previously measured event-plane correlations.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2015. "Measurement of the correlation between flow harmonics of different order in lead-lead collisions at √s̅(NN) = 2.76 TeV with the ATLAS detector." Physical Review C - Nuclear Physics 92(3), doi:10.1103/PhysRevC.92.034903.en_US
dc.identifier.issn0556-2813en_US
dc.identifier.issue3en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4948
dc.identifier.volume92en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevC.92.034903
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights©2015 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourcePhysical Review C - Nuclear Physics
dc.subjectLead-lead interactionsen_US
dc.subjectTransverse momentumen_US
dc.subjectUncertaintyen_US
dc.subjectHarmonic motionen_US
dc.titleMeasurement of the Correlation Between Flow Harmonics of Different Order in Lead-Lead Collisions at √s̅(NN) = 2.76 TeV with the ATLAS Detectoren_US
dc.type.genreArticleen_US

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Izen, Joseph M.
NSM Staff-Student Research