MHV-Vertices for Gravity Amplitudes
High Energy Physics - Theory
2009-11-11 v3
Abstract
We obtain a CSW-style formalism for calculating graviton scattering amplitudes and prove its validity through the use of a special type of BCFW-like parameter shift. The procedure is illustrated with explicit examples.
Keywords
Cite
@article{arxiv.hep-th/0509016,
title = {MHV-Vertices for Gravity Amplitudes},
author = {N. E. J. Bjerrum-Bohr and David C. Dunbar and Harald Ita and Warren B. Perkins and Kasper Risager},
journal= {arXiv preprint arXiv:hep-th/0509016},
year = {2009}
}
Comments
21 pages, minor typos corrected, proof added in section 4