Yayınlanmış 1 Ocak 2012 | Sürüm v1
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Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV

Açıklama

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 Delta phi less than or similar to 2.8 rad.

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bib-c46add54-585b-4dea-94e1-7f10b13517f2.txt

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md5:cc377ebc5bbbc1f582ad89c562139b97
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