We report a measurement of the rate of prompt diphoton production
in p anti-p collisions at s**(1/2) = 1.96 TeV using a data sample of 207 pb-1
collected with the upgraded Collider Detector at Fermilab (CDF II). The
background from non-prompt sources is determined using a statistical method
based on differences in the electromagnetic showers. The cross sections 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.
Return to top of page.
Go to Physics Results
Updated: Wednesday, 2004 December 22 13:32:25 CST automatically from input from Carol Picciolo