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arXiv · 1308.6456

A simpler prescription for MHV graviton tree amplitudes in superstring theory

Tiago Ursulino
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Abstract

We extend the Berkovits-Maldacena prescription for MHV amplitudes of the open superstring to the closed superstring, showing that in the α'=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 α' corrections.

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Tiago Ursulino. 2013-11-05. A simpler prescription for MHV graviton tree amplitudes in superstring theory. https://doi.org/10.1007/jhep11(2013)035

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