Inclusive Gluon Production In High Energy Onium-Onium Scattering

Details Inclusive Gluon Production In High Energy Onium-Onium Scattering Inclusive Gluon Production In High Energy Onium-Onium Scattering

2005-08-26

arxiv.org/abs/hep-ph/0508276v2

Phys.Rev. D72 (2005) 094009

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 6 figures; v2: version accepted to Phys. Rev. D, minor corrections included

Scientific paper

10.1103/PhysRevD.72.094009

We calculate the inclusive single-gluon production cross section in high energy onium-onium scattering including pomeron loop effects. The resulting inclusive cross section is given by the k_T-factorization formula with one of the unintegrated gluon distribution functions depending on the total onium-onium scattering cross section, which includes all pomeron loops and has to be found independently. We discuss the limits of applicability of our result and argue that they are given by the limits of applicability of pomeron loop resummation approach. Since the obtained k_T-factorization formula is infrared divergent we conclude that, in order to consistently calculate the (infrared-finite) gluon production cross section in onium-onium scattering, one has to include corrections going beyond the pomeron loop approximation.

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