New Formulae for Gravity Amplitudes: Parity Invariance and Soft Limits
High Energy Physics - Theory
2012-07-18 v1
Abstract
Cachazo and Skinner have recently conjectured a new formula for the complete tree-level S-matrix of N = 8 supergravity. The formula is an integral over the moduli space of rational curves in supertwistor space, and remarkably, manifests the full permutation symmetry of graviton scattering amplitudes. We check that the formula is parity invariance and reproduces the correct universal soft behaviour of graviton amplitudes.
Cite
@article{arxiv.1207.3940,
title = {New Formulae for Gravity Amplitudes: Parity Invariance and Soft Limits},
author = {Mathew Bullimore},
journal= {arXiv preprint arXiv:1207.3940},
year = {2012}
}
Comments
15 pages, 1 figure