Measurement of the inclusive isolated photon production cross section in pp collisions at root s=7 TeV
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ALICE Collaboration... Show more Show less
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Abstract
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 root s = 7 TeV. The measurement is
performed with the electromagnetic calorimeter EMCal and the central
tracking detectors, covering a range of vertical bar eta vertical bar <
0.27 in pseudorapidity and a transverse momentum range of 10 <
p(T)(gamma) < 60 GeV/c. The result extends the pT coverage of previously
published results off the ATLAS and CMS experiments at the same collision
energy to smaller pT. The measurement is compared to next-to-leading
order perturbative QCD calculations and to the results from the ATLAS
and CMS experiments. Allmeasurements and theory predictions are in
agreement with each other.... Show more Show less