Eikonal gluon radiation at finite-Nc beyond 2 loops
High Energy Physics - Phenomenology
2015-07-07 v1
Abstract
We present first calculations of QCD matrix-elements in perturbation theory at finite Nc beyond 2 loops in the eikonal approximation for e+ e- annihilation processes. For the emission of n soft energy-ordered gluons we solve both the colour and kinematic structures at a given order in perturbation theory by means of a Mathematica program that relies solely on a recently developed Mathematica code, ColorMath, that evaluates the trace of products of colour matrices. At large Nc, our squared amplitudes reduce to those already known in the literature.
Keywords
Cite
@article{arxiv.1507.01132,
title = {Eikonal gluon radiation at finite-Nc beyond 2 loops},
author = {Kamel Khelifa-Kerfa and Yazid Delenda},
journal= {arXiv preprint arXiv:1507.01132},
year = {2015}
}
Comments
To appear in the proceedings of the XXIII International Workshop on Deep-Inelastic Scattering and Related Subjects, April 27 - May 1, 2015, Dallas, Texas, USA