Femtoscopy with Identified Charged Pions in Proton-Lead Collisions at √{S_{NN}}=5.02 TeV with ATLAS

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.authorAben, R.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.authorMeirose, Bernhard
dc.contributor.authorNamasivayam, Harisankar
dc.contributor.authorReeves, Kendall
dc.contributor.authorATLAS Collaboration
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2018-09-24T15:05:54Z
dc.date.available2018-09-24T15:05:54Z
dc.date.created2017-12-28en_US
dc.date.issued2018-09-24
dc.description.abstractBose-Einstein correlations between identified charged pions are measured for p+Pb collisions at √{S_{NN}} = 5.02 TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28 nb⁻¹. Pions are identified using ionization energy loss measured in the pixel detector. Two-particle correlation functions and the extracted source radii are presented as a function of collision centrality as well as the average transverse momentum k_T and rapidity (y_{ππ}^*) of the pair. Pairs are selected with a rapidity -2 < (y_{ππ}^*) < 1 and with an average transverse momentum 0.1 < k_T < 0.8 GeV. The effect of jet fragmentation on the two-particle correlation function is studied, and a method using opposite-charge pair data to constrain its contributions to the measured correlations is described. The measured source sizes are substantially larger in more central collisions and are observed to decrease with increasing pair k_T. A correlation of the radii with the local charged-particle density is demonstrated. The scaling of the extracted radii with the mean number of participating nucleons is also used to compare a selection of initial-geometry models. The cross term R_{ol} is measured as a function of rapidity, and a nonzero value is observed with 5.1 sigma combined significance for -1 < (y_{ππ}^*) < 1 in the most central events.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, J. Abdallah, et al. 2017. "Femtoscopy with identified charged pions in proton-lead collisions at √{S_{NN}}=5.02 TeV with ATLAS." Physical Review C 96(6), doi:10.1103/PhysRevC.96.064908en_US
dc.identifier.issn2469-9985en_US
dc.identifier.issue6en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6093
dc.identifier.volume96en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevC.96.064908
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.sourcePhysical Review C
dc.subjectHeavy ion collisionsen_US
dc.subjectProton-lead interactionsen_US
dc.subjectTransverse momentumen_US
dc.subjectInterferometryen_US
dc.subjectPartonsen_US
dc.subjectLarge Hadron Collider (France and Switzerland)en_US
dc.subjectCollisions (Nuclear physics)en_US
dc.titleFemtoscopy with Identified Charged Pions in Proton-Lead Collisions at √{S_{NN}}=5.02 TeV with ATLASen_US
dc.type.genrearticleen_US

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