Prompt Diphoton Production

Document(s) Web Page       Phys. Rev. Lett. 95, 022003 (2005)   [pdf]
Contact(s) R. Blair, R. Culbertson, J. Huston, S. Kuhlmann, Y. Liu and X. Wu
Abstract We report a measurement of the rate of prompt diphoton production in p-pbar collisions at sqrt{s} = 1.96 TeV using a data sample of 207 pb-1 collected with the upgraded Collider Detector at Fermilab. The background from nonprompt sources is determined using a statistical method based on differences in the electromagnetic showers. The cross section is measured as a function of the diphoton mass, the transverse momentum of the diphoton system, and the azimuthal angle between the two photons and is found to be consistent with perturbative QCD predictions.
Comments Last Update: August 2004       Dataset: 207 pb-1