A simpler prescription for MHV graviton tree amplitudes in superstring theory
High Energy Physics - Theory
2013-11-06 v2
Abstract
We extend the Berkovits-Maldacena prescription for MHV amplitudes of the open superstring to the closed superstring, showing that in the \alpha'=0 limit it reduces to the result of supergravity found recently by Hodges. We also verify that this prescription calculates the correct superstring tree level MHV amplitude for 4 gravitons including \alpha' corrections.
Keywords
Cite
@article{arxiv.1308.6456,
title = {A simpler prescription for MHV graviton tree amplitudes in superstring theory},
author = {Tiago Ursulino},
journal= {arXiv preprint arXiv:1308.6456},
year = {2013}
}
Comments
33 pages, 7 figures; v2: appendix corrected, footnote 14 added, reference 15 upgraded, typos fixed