Large transverse momentum direct photon production in the coherent diffractive processes at hadron colliders

Details Large transverse momentum direct photon production in the coherent diffractive processes at hadron colliders Large transverse momentum direct photon production in the coherent diffractive processes at hadron colliders

1999-04-06

arxiv.org/abs/hep-ph/9904238v1

Phys.Rev. D60 (1999) 117504

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 PS figures, Revtex

Scientific paper

10.1103/PhysRevD.60.117504

Direct photon production at large transverse momentum in the coherent diffractive processes at hadron colliders is calculated in the two-gluon exchange model. We find that the amplitude for the production process is related to the differential off-diagonal gluon distribution function in the proton. We estimate the production rate at the Fermilab Tevatron by approximately using the usual gluon distribution function. Because of the clean signature, this process can be used to detailed study the small-x physics, and the coherent diffractive processes at hadron colliders.

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