High-energy resummation in direct photon production

Details High-energy resummation in direct photon production High-energy resummation in direct photon production

2009-06-23

arxiv.org/abs/0906.4159v1

Nucl.Phys.B824:154-167,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 5 figures

Scientific paper

10.1016/j.nuclphysb.2009.09.001

We present the computation of the direct photon production cross-section in perturbative QCD to all orders in the limit of high partonic center-of-mass energy. We show how the high-energy resummation can be performed consistently in the presence of a collinear singularity in the final state, we compare our results to the fixed order NLO cross-section in MSbar scheme, and we provide predictions at NNLO and beyond.

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