Scientific article
Open access

Measurement of the Cross Section for Prompt Isolated Diphoton Production in pp Collisions at √s=1.96  TeV

ContributorsCDF Collaboration
Published inPhysical review letters, vol. 107, no. 10, 102003
Publication date2011

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.

Citation (ISO format)
CDF Collaboration. Measurement of the Cross Section for Prompt Isolated Diphoton Production in <em>pp</em> Collisions at √s=1.96  TeV. In: Physical review letters, 2011, vol. 107, n° 10, p. 102003. doi: 10.1103/PhysRevLett.107.102003
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Article (Published version)
ISSN of the journal0031-9007

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