Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at sqrt(s) = 7 TeV
Abstract
The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy ET-gamma in pp collisions at sqrt(s)=7 TeV using data recorded by the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.9 inverse picobarns. Photons are required to have a pseudorapidity |etagamma|<1.45 and ET-gamma > 21 GeV, covering the kinematic region 0.006 < xT < 0.086. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations.
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