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Title

Measurement of the cross section for prompt isolated diphoton production in pp collisions at √s=1.96  TeV

CollaborationWith : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin
Published in Physical Review. D. 2011, vol. 05, no. 05, p. 052006
Abstract This article reports a measurement of the production cross section of prompt isolated photon pairs in proton-antiproton collisions at s√=1.96  TeV using the CDF II detector at the Fermilab Tevatron collider. The data correspond to an integrated luminosity of 5.36  fb−1. The cross section is presented as a function of kinematic variables sensitive to the reaction mechanisms. The results are compared with three perturbative QCD calculations: (1) a leading-order parton shower Monte Carlo, (2) a fixed next-to-leading-order calculation and (3) a next-to-leading-order/next-to-next-to-leading-log resummed calculation. The comparisons show that, within their known limitations, all calculations predict the main features of the data, but no calculation adequately describes all aspects of the data.
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CDF COLLABORATION. Measurement of the cross section for prompt isolated diphoton production in pp collisions at √s=1.96  TeV. In: Physical Review. D, 2011, vol. 05, n° 05, p. 052006. https://archive-ouverte.unige.ch/unige:38705

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Deposited on : 2014-07-15

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