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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 Letters. 2011, vol. 107, no. 10, p. 102003
Abstract This Letter reports a measurement of the cross section of prompt isolated photon pair production in pp collisions at a total energy s√=1.96  TeV using data of 5.36  fb−1 integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measured cross section, differential in basic kinematic variables, is compared with three perturbative QCD predictions, a leading order parton shower calculation and two next-to-leading order calculations. The next-to-leading order calculations reproduce most aspects of the data. By including photon radiation from quarks before and after hard scattering, the parton shower prediction becomes competitive with the next-to-leading order predictions.
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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 Letters, 2011, vol. 107, n° 10, p. 102003. https://archive-ouverte.unige.ch/unige:38754

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Deposited on : 2014-07-21

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