The singular behavior of one-loop massive QCD amplitudes with one external soft gluon

Details The singular behavior of one-loop massive QCD amplitudes with one external soft gluon The singular behavior of one-loop massive QCD amplitudes with one external soft gluon

2011-07-21

arxiv.org/abs/1107.4384v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, no figures. Attached a file containing the results

Scientific paper

We calculate the one-loop correction to the soft-gluon current with massive fermions. This current is process independent and controls the singular behavior of one-loop massive QCD amplitudes in the limit when one external gluon becomes soft. The result derived in this work is the last missing process-independent ingredient needed for numerical evaluation of observables with massive fermions at hadron colliders at the next-to-next-to-leading order.

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