{ "id": "1110.6461", "version": "v1", "published": "2011-10-28T20:58:37.000Z", "updated": "2011-10-28T20:58:37.000Z", "title": "Measurement of the Production Cross Section for Pairs of Isolated Photons in pp collisions at sqrt(s) = 7 TeV", "authors": [ "CMS Collaboration" ], "journal": "JHEP 01 (2012) 133", "doi": "10.1007/JHEP01(2012)133", "categories": [ "hep-ex" ], "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.", "revisions": [ { "version": "v1", "updated": "2011-10-28T20:58:37.000Z" } ], "analyses": { "keywords": [ "production cross section", "isolated photons", "pp collisions", "measurement", "differential cross sections" ], "tags": [ "journal article" ], "publication": { "publisher": "Springer", "journal": "Journal of High Energy Physics", "year": 2012, "month": "Jan", "volume": 2012, "pages": 133 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 943720, "adsabs": "2012JHEP...01..133C" } } }