Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4

Details Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4 Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4

1999-05-07

arxiv.org/abs/hep-th/9905050v1

JHEP 9906 (1999) 011

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, the introduction (2.5 pages) is a comprehensive summary including the main result

Scientific paper

10.1088/1126-6708/1999/06/011

In this note we derive an explicit modular invariant formula for the two loop 4-point amplitude in superstring theory in terms of a multiple integral (7 complex integration variables) over the complex plane which is shown to be convergent. We consider in particular the case of the leading term for vanishing momenta of the four graviton amplitude, which would correspond to the two-loop correction of the R^4 term in the effective Action. The resulting expression is not positive definite and could be zero, although we cannot see that it vanishes.

Affiliated with

Also associated with

No associations

Rating

Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Explicit Modular Invariant Two-Loop Superstring Amplitude Relevant for R^4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-599137