Published in:
Physical Review Letters 95,2 (2005) 022002;
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.95.022002
Abstract
We report a measurement of the rate of prompt diphoton production in p (p) over bar collisions at root 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.
Keywords
photon pair production
Date of this Version
January 2005