2005•arXiv (Cornell University)Open access

Multi gluon collinear limits from MHV amplitudes

Peter Marquard, T. G. Birthwright

Abstract

We consider the multi-collinear limit of multi-gluon QCD amplitudes at tree level. We use the MHV rules for constructing colour ordered tree amplitudes and the general collinear factorisation formula to derive timelike splitting functions that are valid for specific numbers of negative helicity gluons and an arbitrary number of positive helicity gluons (or vice versa).

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Key concepts: Gluon, Amplitude, Physics, Particle physics, Quantum electrodynamics, Quantum mechanics, Quantum chromodynamics