QCD Amplitudes: new perspectives on Feynman integral calculus
High Energy Physics - Phenomenology
2015-07-14 v1 High Energy Physics - Theory
Abstract
I analyze the algebraic patterns underlying the structure of scattering amplitudes in quantum field theory. I focus on the decomposition of amplitudes in terms of independent functions and the systems of differential equations the latter obey. In particular, I discuss the key role played by unitarity for the decomposition in terms of master integrals, by means of generalized cuts and integrand reduction, as well as for solving the corresponding differential equations, by means of Magnus exponential series.
Cite
@article{arxiv.1507.03226,
title = {QCD Amplitudes: new perspectives on Feynman integral calculus},
author = {Pierpaolo Mastrolia},
journal= {arXiv preprint arXiv:1507.03226},
year = {2015}
}
Comments
Presented at Rencontres de Moriond 2015