Speaker
Philippe Gras
(CEA Saclay)
Description
We present QCD measurements with photons using data from pp collisions at sqrt(s)= 7 TeV, recorded with the CMS detector at the CERN LHC. The differential cross section for the inclusive production of isolated prompt photons as a function of the photon transverse energy and the inclusive di-photon production rate as a function of the di-photon invariant mass are compared to next-to-leading-order perturbative QCD calculations. Also, the photon+jet ratio of cross sections is presented, compared to Monte-Carlo generator predictions.
