8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

First Measurement of the isolated prompt diphoton production cross-section in CMS at sqrt(s)=7 TeV

11 Aug 2011, 10:50
20m
551 A (Rhode Island Convention Center)

551 A

Rhode Island Convention Center

Parallel contribution Perturbative and non-Perturbative QCD Perturbative and non-Perturbative QCD

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))

Presentation Materials