Infrared safety of impact factors for colourless particle interactions

Details Infrared safety of impact factors for colourless particle interactions Infrared safety of impact factors for colourless particle interactions

1999-04-30

arxiv.org/abs/hep-ph/9904505v1

Phys.Rev. D60 (1999) 114008

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages latex including 10 figures

Scientific paper

10.1103/PhysRevD.60.114008

We demonstrate, to next-to-leading order accuracy, the cancellation of the
infrared singularities in the impact factors which arise in the QCD description
of high energy processes A + B -> A' + B' of colourless particles. We study the
example where A is a virtual photon in detail, but show that the result is true
in general.

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