Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-21
Phys.Rev.D57:6934-6947,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
43 pages, Latex, 14 postscript figures, imbedded using psfig.tex
Scientific paper
10.1103/PhysRevD.57.6934
The production rate and kinematic distributions of isolated photon pairs produced in hadron interactions are studied. The effects of the initial-state multiple soft-gluon emission to the scattering subprocesses q-qbar, qg, and gg to gamma gamma X are resummed with the Collins-Soper-Sterman soft gluon resummation formalism. The effects of fragmentation photons from qg to gamma q, followed by q to gamma X, are also studied. The results are compared with data from the Fermilab Tevatron collider. A prediction of the production rate and kinematic distributions of the diphoton pair in proton-nucleon reactions is also presented.
Balazs Csaba
Berger Edmond L.
Mrenna Stephen
Yuan C.--P.
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