Factorization of the Two Loop Four-Particle Amplitude in Superstring Theory Revisited
نویسندگان
چکیده
We study in detail the factorization of the newly obtained two-loop four-particle amplitude in superstring theory. In particular some missing factors from the scalar correlators are obtained correctly, in comparing with a previous study of the factorization in two-loop superstring theory. Some details for the calculation of the factorization of the kinematic factor are also presented. E-mail: [email protected] E-mail: [email protected] Supported in part by fund from the National Natural Science Foundation of China with grant Number 90103004 and 10475104.
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تاریخ انتشار 2008