Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN = 2.76 TeV measured with the ATLAS detector

doi:10.1103/PhysRevC.93.034914

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2016 | Abdallah, J. | Khodinov, A.

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DOI Доступ к ресурсу на сайте издателя				10.1103/PhysRevC.93.034914

Title: Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN = 2.76 TeV measured with the ATLAS detector
Creator: Aad, G.
Creator: Abdallah, J.
Creator: Chelkov, G. A.
Creator: Khodinov, A.
Creator: Vaniachine, A.
Creator: Abbott, B.
Subject: ATLAS, детектор
Большой адронный коллайдер
свинец
протон-протонные столкновения
Date: 2016
DOI: 10.1103/PhysRevC.93.034914
Description: Prompt photon production in √sNN=2.76-TeV Pb+Pb collisions has been measured by the ATLAS experiment at the Large Hadron Collider using data collected in 2011 with an integrated luminosity of 0.14 nb−1. Inclusive photon yields, scaled by the mean nuclear thickness function, are presented as a function of collision centrality and transverse momentum in two pseudorapidity intervals, |η|<1.37 and1.52≤|η|<2.37. The scaled yields in the two pseudorapidity intervals, as well as the ratios of the forward yields to those at midrapidity, are compared to the expectations from next-to-leading-order perturbative QCD (pQCD) calculations. The measured cross sections agree well with the predictions for proton-proton collisions within statistical and systematic uncertainties. Both the yields and the ratios are also compared to two other pQCD calculations, one which uses the isospin content appropriate to colliding lead nuclei and another which includes nuclear modifications to the nucleon parton distribution functions.

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collection(s): Радиофизический факультет
Научное управление
Identifier: vtls:000622816
http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000622816
Type: статьи в журналах
Source: Physical Review C. 2016. Vol. 93, № 3. P. 034914-1-034914-28
Language: eng

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Научное управление Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN = 2.76 TeV measured with the ATLAS detector