Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV
(2012) Journal of High Energy Physics — Vol. 1201, n° 1, p. 133 (2012)
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- Authors
- 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.
- Affiliations
- Yerevan Phys. Inst.
Citations
CMS Collaboration, Quertenmont, L., Chatrchyan, S., Basegmez, S., Bruno, G., Caudron, J., Ceard, L., de Favereau de Jeneret, J., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Grégoire, G., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., Pagano, D., et al. (2012). Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV. Journal of High Energy Physics, 1201(1), 133. https://doi.org/10.1007/JHEP01(2012)133 (Original work published 2012)