Measurement of the inclusive isolated photon production cross section in p p collisions at $\sqrt{s}$ =7 TeV

The production cross section of inclusive isolated photons has been measured by the ALICE experiment at the CERN LHC in pp collisions at a centre-of-momentum energy of √s= 7 TeV. The measurement is performed with the electromagnetic calorimeter EMCal and the central tracking detectors, covering a range of |η| < 0.27 in pseudorapidity and a transverse momentum range of 10< p^γ<sub style='position: relative; left: -.5em;'>T</sub><60 GeV/c. The result extends the p_T coverage of previously published results of the ATLAS and CMS experiments at the same collision energy to smaller p_T. The measurement is compared to next-to-leading order perturbative QCD calculations and to the results from the ATLAS and CMS experiments. All measurements and theory predictions are in agreement with each other.. Authors: Acharya, S.; Adamová, D.; Adhya, S. P.; Adler, A.; Adolfsson, J.. DOE Contract: AC02-05CH11231; AC05-00OR22725. Subjects: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS