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arXiv · 1507.01132

Eikonal gluon radiation at finite-Nc beyond 2 loops

Kamel Khelifa-Kerfa·Yazid Delenda
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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.

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Kamel Khelifa-Kerfa, Yazid Delenda. 2015-07-04. Eikonal gluon radiation at finite-Nc beyond 2 loops. https://arxiv.org/abs/1507.01132

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