Measurement of the inclusive isolated prompt photons cross section in pp collisions at root s=7 TeV with the ATLAS detector using 4.6 fb(-1)

UNSPECIFIED (2014) Measurement of the inclusive isolated prompt photons cross section in pp collisions at root s=7 TeV with the ATLAS detector using 4.6 fb(-1). Physical Review D, 89 (5): 052004. ISSN 1550-7998

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Abstract

A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy s√=7 TeV is presented. The results are based on an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the LHC. The cross section is measured as a function of photon pseudorapidity ηγ and transverse energy EγT in the kinematic range 100≤EγT<1000 GeV and in the regions |ηγ|<1.37 and 1.52≤|ηγ|<2.37. The results are compared to leading-order parton-shower Monte Carlo models and next-to-leading-order perturbative QCD calculations. Next-to-leading-order perturbative QCD calculations agree well with the measured cross sections as a function of EγT and ηγ.

Item Type:

Journal Article

Journal or Publication Title:

Physical Review D

Additional Information:

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. © 2014 CERN, for the ATLAS Collaboration

Subjects:

?? parton distributionscolliderprotonlhc ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

69971

Deposited By:

ep_importer_pure

Deposited On:

10 Jul 2014 23:04

Refereed?:

Yes