Two-Loop Computation in Superstring Theory

Details Two-Loop Computation in Superstring Theory Two-Loop Computation in Superstring Theory

2003-01-06

arxiv.org/abs/hep-th/0301018v1

Physics

High Energy Physics

High Energy Physics - Theory

LaTex file, 30 pages

Scientific paper

In this paper I review some old and new works on the computation of two-loop 4-particle amplitude in superstring theory. I also present the proof by Iengo, showing the vanishing of the term related to the two-loop correction to the $R^4$ term. Finally I will present some recent works on two-loop computation in hyperelliptic language following the new gauging fixing method of D'Hoker and Phong.

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