Integrand reduction beyond one-loop calculations
Abstract
In this presentation, we review the general features of integrand-reduction techniques, with a particular focus on their generalization beyond one loop. We start with a brief discussion of the one-loop scenario, a case in which integrand-reduction algorithms are well established and played over the past decade an important role in the development of automated tools for the theoretical evaluation of physical observables. The generalization of integrand-reduction techniques to all loops has been the subject of several efforts in the recent past, thus providing a better understanding of the universal properties of scattering amplitudes. The ultimate goal of these studies is the development of efficient alternative computational techniques for the evaluation of Feynman integrals beyond one loop.
Cite
@article{arxiv.1607.08901,
title = {Integrand reduction beyond one-loop calculations},
author = {Giovanni Ossola},
journal= {arXiv preprint arXiv:1607.08901},
year = {2016}
}
Comments
12 pages, 2 figures, to appear in the proceedings of Loops and Legs in Quantum Field Theory, 24-29 April 2016, Leipzig, Germany. arXiv admin note: substantial text overlap with arXiv:1601.04590