UV consistency conditions for CHY integrands
High Energy Physics - Theory
2020-08-19 v1
Abstract
We extend on-shell bootstrap methods from spacetime amplitudes to the worldsheet objects of the CHY formalism. We find that the integrands corresponding to tree-level non-linear sigma model, Yang-Mills and theory are determined by demanding enhanced UV scaling under BCFW shifts. Back in spacetime, we also find that theory is fixed by gauge invariance/UV scaling and simple locality assumptions.
Keywords
Cite
@article{arxiv.2005.06446,
title = {UV consistency conditions for CHY integrands},
author = {Laurentiu Rodina},
journal= {arXiv preprint arXiv:2005.06446},
year = {2020}
}