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CMS-QCD-10-035 ; CERN-PH-EP-2011-171
Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at $\sqrt{s}$ = 7 TeV
CMS Collaboration
1 November 2011
J. High Energy Phys. 01 (2012) 133
Abstract: The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 36 inverse picobarns is analysed. A next-to-leading-order perturbative QCD calculation is compared to the measurements. A discrepancy is observed for regions of the phase space where the two photons have an azimuthal angle difference, Delta(phi), less than approximately 2.8.
Links: e-print arXiv:1110.6461 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; HepData record ; CADI line (restricted) ;
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Compact Muon Solenoid
LHC, CERN