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

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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

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Title: 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
Author(s):
Aad, G.;
Abajyan, T.;
Abbott, B.;
Abdallah, J.;
Khalek, S. Abdel;
Abdelalim, A. A.;
Abdinov, O.;
Wong, Wei-Cheng;
Reeves, Kendall;
Lou, Xinchou;
Izen, Joseph M .;
Namasivayam, Harisankar;
ATLAS Collaboration
Date Created: 2014-03-24
Format: Text
Item Type: Article
Keywords: Show Keywords
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 η^γ and transverse energy E_T^γ in the kinematic range 100 ≤ E_T^γ < 1000 GeV and in the regions |η^γ| < 1.37 and 1.52 ≤ |η^γ| < 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 E_T^γ and η^γ.
Publisher: American Physical Society
ISSN: 1550-7998
Source: Physical Review D
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevD.89.052004
Persistent Link: http://hdl.handle.net/10735.1/3907
Bibliographic Citation: Aad, G., T. Abajyan, B. Abbott, J. Abdallah, et al. 2014. "Measurement of the inclusive isolated prompt photons cross section in pp collisions at √s̅=7 TeV with the ATLAS detector using 4.6 fb⁻¹." Physical Review D 89(5), doi:10.1103/PhysRevD.89.052004
Terms of Use: CC BY 3.0 (Attribution)
©2014 CERN, for the ATLAS Collaboration

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