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

Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and The ATLAS Collaboration, (2014) Measurement of the inclusive isolated prompt photons cross section in pp collisions at √s = 7  TeV with the ATLAS detector using 4.6  fb−¹. Physical Review D, 89 (5). 052004. ISSN 2470-0010

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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: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 02 May 2017 13:11
Last Modified: 02 May 2017 13:18
URI: http://sro.sussex.ac.uk/id/eprint/67610

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Project NameSussex Project NumberFunderFunder Ref
ATLASG0275STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/I006048/1