Sudakov Resummation Effects in Prompt-Photon Hadroproduction

Details Sudakov Resummation Effects in Prompt-Photon Hadroproduction Sudakov Resummation Effects in Prompt-Photon Hadroproduction

1999-03-22

arxiv.org/abs/hep-ph/9903436v1

JHEP 9903:025,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, Latex, epsfig, amssymb, 17 figures. Submitted to JHEP

Scientific paper

10.1088/1126-6708/1999/03/025

We compute the effects of soft-gluon resummation, at the next-to-leading-logarithmic level, in the fixed-target hadroproduction cross section for prompt photons. We find in general that the corrections to the fixed next-to-leading-order results are large for large renormalization scales, and small for small scales. This leads to a significant reduction of the scale dependence of the results for most experimental configurations of interest. We compare our results to the recent measurements by the E706 and UA6 collaborations.

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