In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2012, No. 1 ( 2012-01)
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 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 $ \Delta \varphi \lesssim 2.8 $ rad.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP01(2012)133
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2012
detail.hit.zdb_id:
2027350-2