Simplifying Multi-Jet QCD Computation

TL;DR

This paper provides a pedagogical overview of techniques for computing QCD tree amplitudes, including spinor methods, color ordering, MHV amplitudes, and recursion formulas, aimed at collider physics applications.

Contribution

It offers a clear, educational presentation of key computational methods in QCD tree amplitude calculations, emphasizing recent recursive techniques.

Findings

Clarifies spinor product and color ordering methods

Explains MHV amplitude construction

Details Britto-Cachazo-Feng-Witten recursion formula

Abstract

These lectures give a pedagogical discussion of the computation of QCD tree amplitudes for collider physics. The topics reviewed are: spinor products, color ordering, MHV amplitudes, and the Britto-Cachazo-Feng-Witten recursion formula. The lectures were presented at the XIII Mexican School of Particles and Fields, 2008, and at the LHC Physics Summer School at Tsinghua University, 2010.