A simplified expression for the one-loop soft-gluon current with massive fermions
Abstract
We present a much simpler analytic expression for the UV un-renormalized one-loop soft-gluon current which controls the infra-red behavior of one-loop QCD amplitudes with massive fermions when an external gluon becomes soft. The result is given entirely in terms of standard polylogarithms, is of uniform transcendentality and is well-suited for computer implementation.
- Publication:
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arXiv e-prints
- Pub Date:
- April 2018
- DOI:
- 10.48550/arXiv.1804.02069
- arXiv:
- arXiv:1804.02069
- Bibcode:
- 2018arXiv180402069C
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Theory
- E-Print:
- 3 pages