Azimuthal Anisotropy of pi(0) Production in Au plus Au Collisions at root s(NN)=200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry

dc.contributor.author Adare, Andrew
dc.contributor.author Hill, John
dc.contributor.author Ogilvie, Craig
dc.contributor.author Kempel, Todd
dc.contributor.author Lajoie, John
dc.contributor.author Lebedev, Alexandre
dc.contributor.author Ogilvie, Craig
dc.contributor.author Pei, H.
dc.contributor.author Rosati, Marzia
dc.contributor.author Semenov, Alexey
dc.contributor.author Vale, Carla
dc.contributor.author Wei, Feng
dc.contributor.author et al.
dc.contributor.department Physics and Astronomy
dc.date 2018-02-18T13:10:49.000
dc.date.accessioned 2020-06-30T06:18:43Z
dc.date.available 2020-06-30T06:18:43Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2010
dc.date.issued 2010-09-27
dc.description.abstract <p>We have measured the azimuthal anisotropy of pi(0) production for 1 < p(T) < 18 GeV/c for Au + Au collisions at root s(NN) = 200 GeV. The observed anisotropy shows a gradual decrease for 3 less than or similar to p(T) less than or similar to 7-10 GeV/c, but remains positive beyond 10 GeV/c. The magnitude of this anisotropy is underpredicted, up to at least similar to 10 GeV/c, by current perturbative QCD (PQCD) energy-loss model calculations. An estimate of the increase in anisotropy expected from initial-geometry modification due to gluon saturation effects and fluctuations is insufficient to account for this discrepancy. Calculations that implement a path-length dependence steeper than what is implied by current PQCD energy-loss models show reasonable agreement with the data.</p>
dc.description.comments <p>This article is published as Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander et al. "Azimuthal Anisotropy of π 0 Production in Au+ Au Collisions at s N N= 200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry." <em>Physical review letters</em> 105, no. 14 (2010): 142301. DOI:<a href="http://dx.doi.org/10.1103/PhysRevLett.105.142301" target="_blank">10.1103/PhysRevLett.105.142301</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/physastro_pubs/319/
dc.identifier.articleid 1304
dc.identifier.contextkey 10251523
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath physastro_pubs/319
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/57077
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/physastro_pubs/319/2010_Ogilvie_AzimuthalAnisotropy.pdf|||Fri Jan 14 23:32:58 UTC 2022
dc.source.uri 10.1103/PhysRevLett.105.142301
dc.subject.disciplines Elementary Particles and Fields and String Theory
dc.subject.disciplines Physics
dc.title Azimuthal Anisotropy of pi(0) Production in Au plus Au Collisions at root s(NN)=200 GeV: Path-Length Dependence of Jet Quenching and the Role of Initial Geometry
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 0c7465f3-a076-4319-9513-6cd51186bbf6
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
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