Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|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|
|Other Titles:||Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at root sNN = 2.76 TeV measured with the ATLAS detector|
Abdel Khalek, S.
|Citation:||Physical Review C, 2016; 93(3):034914-1-034914-28|
|Publisher:||American Physical Society|
|G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... [et al.] (The ATLAS Collaboration)|
|Abstract:||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 and 1.52≤|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.|
|Rights:||©2016 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.|
|Appears in Collections:||Physics publications|
Files in This Item:
|hdl_114920.pdf||Published version||823.59 kB||Adobe PDF||View/Open|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.