Massive Quark-Gluon Scattering Amplitudes at Tree Level

Preprint

8 October 2007

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.0710.1300

Abstract

Results for four-, five-, and six-parton tree amplitudes for massive quark-antiquark scattering with gluons are calculated using the recursion relations of Britto, Cachazo, Feng, and Witten. The required diagrams are generated using shifts of the momenta of a pair of massless legs to complex values. Checks verifying the calculations are described, and a simple formula for the shifted spinors of an internal gluon is presented.

Keywords

SCATTERING AMPLITUDES
GLUON SCATTERING
TREE AMPLITUDES
MASSIVE QUARK
QUARK GLUON
TREE LEVEL

All Related Versions

Version 1, 2007-10-08, ArXiv
Published version: Physical Review D, 77 (2), 025011.

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