Factorization and Unitarity in Superstring Theory
High Energy Physics - Theory
2009-11-11 v3
Abstract
The overall coefficient of the two-loop 4-particle amplitude in superstring theory is determined by making use of the factorization and unitarity. To accomplish this we computed in detail all the relevant tree and one-loop amplitudes involved and determined their overall coefficients in a consistent way.
Cite
@article{arxiv.hep-th/0503248,
title = {Factorization and Unitarity in Superstring Theory},
author = {Zhi-Guang Xiao and Chuan-Jie Zhu},
journal= {arXiv preprint arXiv:hep-th/0503248},
year = {2009}
}
Comments
LaTex file, 19 pages, 4 figures; v2, minor corrections and figures corrected; v3, minor corrections with the English, to be published in JHEP