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arXiv · hep-ph/9903436

Sudakov Resummation Effects in Prompt-Photon Hadroproduction

S. Catani·M. L. Mangano·P. Nason·C. Oleari·W. Vogelsang
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Abstract

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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S. Catani, M. L. Mangano, P. Nason, C. Oleari, W. Vogelsang. 1999-03-22. Sudakov Resummation Effects in Prompt-Photon Hadroproduction. https://doi.org/10.1088/1126-6708%2F1999%2F03%2F025

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