Effects of Parton Intrinsic Transverse Momentum on Photon Production in Hard-Scattering Processes

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dc.creatorWong, Cheuk-Yin
dc.creatorWang, Hui
dc.date1998-02-20
dc.date1998-05-01
dc.date.accessioned2026-07-07T11:09:45Z
dc.date.available2026-07-07T11:09:45Z
dc.descriptionWe calculate the photon production cross section arising from the hard scattering of partons in nucleon-nucleon collisions by taking into account the intrinsic parton transverse momentum distribution and the next-to-leading-order contributions. As first pointed out by Owens, the inclusion of the intrinsic transverse momentum distribution of partons leads to an enhancement of photon production cross section in the region of photon transverse momenta of a few GeV/c for nucleon-nucleon collisions at a center-of-mass energy of a few tens of GeV. The enhancement increases as $\sqrt{s}$ decreases. Such an enhancement is an important consideration in the region of photon momenta under investigation in high-energy heavy-ion collisions.
dc.description10 pages, 9 figures, in LaTex, revised to include ananlytic evaluation of the hard-scattering integral
dc.identifierhttps://arxiv.org/abs/hep-ph/9802378
dc.identifierhttp://arxiv.org/abs/hep-ph/9802378
dc.identifierPhys.Rev.C58:376-388,1998
dc.identifierdoi:10.1103/PhysRevC.58.376
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190575
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleEffects of Parton Intrinsic Transverse Momentum on Photon Production in Hard-Scattering Processes
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