Speaker
Laurent Millischer
(IRFU-CEA - Centre d'Etudes de Saclay (CEA))
Description
Events with two isolated photons are a useful probe of hard-scattering QCD. Also, uncertainty in sigma(diphoton + X) is a major source of systematic error for Higgs and exotic diphoton searches. We present the first measurement of the isolated differential diphoton cross-section from proton-proton collisions at a center-of-mass energy of 7 TeV with the Compact Muon Solenoid detector at CERN. We compare the results with next-to-leading-order perturbative QCD calculations.
Primary author
Laurent Millischer
(IRFU-CEA - Centre d'Etudes de Saclay (CEA))