Measurement of the production cross section for pairs of isolated photons in pp collisions at √s = 7 TeV

The CMS collaboration

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Abstract

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 7TeV with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 36 pb-1 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 Δ ℓ ≲. 2:8 rad.

Original languageEnglish (US)
Article number133
JournalJournal of High Energy Physics
Volume2012
Issue number1
DOIs
StatePublished - 2012

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Hadron-hadron scattering

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