Factorization and Unitarity in Superstring Theory


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. E-mail: xiaozhiguang@pku.edu.cn or zgxiao@itp.ac.cn… (More)


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@inproceedings{Xiao2005FactorizationAU, title={Factorization and Unitarity in Superstring Theory}, author={Z Xiao and Chuan-Jie Zhu}, year={2005} }