Photon, diphoton and photon+jet production measured with the ATLAS detector

0427554 - FZÚ 2015 RIV IT eng C - Conference Paper (international conference)
Svatoš, Michal
Photon, diphoton and photon+jet production measured with the ATLAS detector.
Proceedings of Science. Trieste: S I S S A, 2013, s. 1-5,149. ISSN 1824-8039.
[International Workshop on Deep-Inelastic Scattering and Related Subjects /21./ - DIS2013. Marseilles (FR), 22.04.2013-26.04.2013]
Institutional support: RVO:68378271
Keywords : prompt photon * diphoton * photon+jet
Subject RIV: BF - Elementary Particles and High Energy Physics
http://pos.sissa.it/archive/conferences/191/149/DIS%202013_149.pdf

A measurement of prompt photon, diphoton and photon+jet cross-section, using data collected by the ATLAS Experiment at the LHC in the years 2010 and 2011, is presented. Isolated prompt photons provide a direct probe of short-distance physics, complementary to that provided by measurements of jets or vector-bosons. The data are sensitive to the gluon density of the proton. The inclusive prompt photon cross sections have been measured over a wide range of transverse momenta; the diphoton cross section has also been measured as a function of diphoton mass, total transverse momentum and azimuthal separation; the cross section for photons produced in association with jets is also measured. The results are compared to the predictions of next-toleading-order QCD.
Permanent Link: http://hdl.handle.net/11104/0233071