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)
Number of Authors: 2916
2014 (English)In: Physical Review D, ISSN 1550-7998, Vol. 89, no 5, 052004- p.Article in journal (Refereed) Published
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.
Parton Distributions, Collider, Proton, LHC
IdentifiersURN: urn:nbn:se:kth:diva-146286DOI: 10.1103/PhysRevD.89.052004ISI: 000334304700002ScopusID: 2-s2.0-84898748105OAI: oai:DiVA.org:kth-146286DiVA: diva2:723573
FunderSwedish Research Council
QC 20140611. Author count: 29162014-06-112014-06-112014-06-11Bibliographically approved