A Note on Soft Factors for Closed String Scattering
High Energy Physics - Theory
2014-11-26 v1
Abstract
In this note, it is shown that closed string graviton scattering amplitudes obey the same subleading soft limit as field theory graviton scattering amplitudes. The result is derived using a combination of recent results and methods including the subleading soft expansion for type I open string gluon disk scattering amplitudes, the single value projection for multiple values, and the KLT relations in field and string theory.
Cite
@article{arxiv.1411.6661,
title = {A Note on Soft Factors for Closed String Scattering},
author = {Burkhard U. W. Schwab},
journal= {arXiv preprint arXiv:1411.6661},
year = {2014}
}
Comments
12 pages