CERN Accelerating science

ATLAS Slides
Report number	ATL-PHYS-SLIDE-2015-209
Title	Measurement of the inclusive photon and photon+jet production cross-sections at $\boldsymbol{\sqrt{s}}$ = 7 TeV with the ATLAS detector
Author(s)	Saimpert, Matthias (Commissariat a l'Energie Atomique (CEA), DSM/IRFU, Centre d'Etudes de Saclay)
Corporate author(s)	The ATLAS collaboration
Submitted to	23rd International Workshop on Deep-Inelastic Scattering and Related Subjects, Dallas, TX, USA, 27 Apr - 1 May 2015
Submitted by	[email protected] on 05 May 2015
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	photon ; standard model ; perturbative QCD ; Higgs background ; QCD
Abstract	Measurements of the inclusive photon production performed by the ATLAS collaboration are reported in different fiducial regions covering a wide acceptance. Comparisons to the data of the next-to-leading order QCD calculations JetPhox with different PDFs are presented. The theoretical uncertainties, including scale, strong coupling, and PDF uncertainties are evaluated. The cross sections for photons produced in association with jets are also measured by the ATLAS collaboration as functions of photon and jet kinematics and are compared to next-to-leading-order QCD calculations.