Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). 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. Physical review. C - nuclear physics, 93(3) American Institute of Physics 10.1103/PhysRevC.93.034914
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1506.08552.pdf - Accepted Version Available under License Creative Commons: Attribution (CC-BY). Download (773kB) | Preview |
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PhysRevC.93.034914.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (843kB) | Preview |
Prompt photon production in √sNN = 2.76s 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⁻. 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 calculations from JETPHOX. The measured cross sections agree well with the predictions for proton-proton collisions within statistical and systematic uncertainties. Both the yields and 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.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics 500 Science > 510 Mathematics |
ISSN: |
0556-2813 |
Publisher: |
American Institute of Physics |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
26 Jul 2017 12:57 |
Last Modified: |
05 Dec 2022 15:05 |
Publisher DOI: |
10.1103/PhysRevC.93.034914 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt. |
BORIS DOI: |
10.7892/boris.100033 |
URI: |
https://boris.unibe.ch/id/eprint/100033 |
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