Integration Rules for Loop Scattering Equations
High Energy Physics - Theory
2016-01-20 v1
Abstract
We formulate new integration rules for one-loop scattering equations analogous to those at tree-level, and test them in a number of non-trivial cases for amplitudes in scalar -theory. This formalism greatly facilitates the evaluation of amplitudes in the CHY representation at one-loop order, without the need to explicitly sum over the solutions to the loop-level scattering equations.
Cite
@article{arxiv.1508.03627,
title = {Integration Rules for Loop Scattering Equations},
author = {Christian Baadsgaard and N. E. J. Bjerrum-Bohr and Jacob L. Bourjaily and Poul H. Damgaard and Bo Feng},
journal= {arXiv preprint arXiv:1508.03627},
year = {2016}
}
Comments
22 pages, 17 figures