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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)
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2916
2014 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 89, no 5, 052004- p.Article in journal (Refereed) Published
Abstract [en]

A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy root 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 eta(gamma) and transverse energy E-T(gamma) in the kinematic range 100 <= E-T(gamma) < 1000 GeV and in the regions vertical bar eta(gamma)vertical bar < 1.37 and 1.52 <= vertical bar eta(gamma)vertical bar < 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(gamma) and eta(gamma) .

Place, publisher, year, edition, pages
2014. Vol. 89, no 5, 052004- p.
Keyword [en]
Parton Distributions, Collider, Proton, LHC
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-146286DOI: 10.1103/PhysRevD.89.052004ISI: 000334304700002Scopus ID: 2-s2.0-84898748105OAI: oai:DiVA.org:kth-146286DiVA: diva2:723573
Funder
Swedish Research Council
Note

QC 20140611.  Author count: 2916

Available from: 2014-06-11 Created: 2014-06-11 Last updated: 2017-12-05Bibliographically approved

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtStrandberg, Jonas
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