Measurement of the Cross Section for Inclusive Isolated-Photon Production in pp Collisions at √s̅ = 13 TeV Using the ATLAS Detector

dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.authorAaboud, M.en_US
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.authorAbeloos, B.en_US
dc.contributor.authorAbidi, S. H.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2018-05-15T19:51:24Z
dc.date.available2018-05-15T19:51:24Z
dc.date.created2017-06-28en_US
dc.date.issued2018-05-15
dc.description.abstractMulti-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at √s̅ = 5.02 and 13 TeV and in p + Pb collisions at √{S_{NN}} = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb + Pb collisions at √{S_{NN}} = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p + Pb and low-multiplicity Pb + Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants and derived Fourier harmonics across different collision systems is presented as a function of the charged-particle multiplicity. For a given multiplicity, the measured Fourier harmonics are largest in Pb + Pb, smaller in p + Pb and smallest in pp collisions. The pp results show no dependence on the collision energy, nor on the multiplicity.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, J. Abdallah, et al. 2017. "Measurement of multi-particle azimuthal correlations in pp, p plus Pb and low-multiplicity Pb plus Pb collisions with the ATLAS detector." European Physical Journal C 77(6), doi:10.1140/epjc/s10052-017-4988-1en_US
dc.identifier.issn1434-6044en_US
dc.identifier.issue6en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5719
dc.identifier.volume77en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.urihttp://dx.doi.org/10.1140/epjc/s10052-017-4988-1
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2017 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceEuropean Physical Journal C
dc.subjectCollisions (Nuclear physics)en_US
dc.subjectQuark-gluon plasmaen_US
dc.subjectAngular-correlations (Nuclear physics)en_US
dc.subjectProtonsen_US
dc.subjectIonsen_US
dc.subjectLead-lead interactionsen_US
dc.subjectProton-lead interactionsen_US
dc.subjectProton-proton interactionsen_US
dc.titleMeasurement of the Cross Section for Inclusive Isolated-Photon Production in pp Collisions at √s̅ = 13 TeV Using the ATLAS Detectoren_US
dc.type.genrearticleen_US

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