String theory predictions for future accelerators

Details String theory predictions for future accelerators String theory predictions for future accelerators

1999-11-03

arxiv.org/abs/hep-th/9911019v2

Nucl.Phys.B575:3-34,2000

Physics

High Energy Physics

High Energy Physics - Theory

39 pages, 8 figures, references added

Scientific paper

10.1016/S0550-3213(00)00082-1

We consider, in a string theory framework, physical processes of phenomenological interest in models with a low string scale. The amplitudes we study involve tree-level virtual gravitational exchange, divergent in a field-theoretical treatment, and massive gravitons emission, which are the main signatures of this class of models. First, we discuss the regularization of summations appearing in virtual gravitational (closed string) Kaluza-Klein exchanges in Type I strings. We argue that a convenient manifestly ultraviolet convergent low energy limit of type I string theory is given by an effective field theory with an arbitrary cutoff $\Lambda$ in the closed (gravitational) channel and a related cutoff $M_s^2/\Lambda$ in the open (Yang-Mills) channel. We find the leading string corrections to the field theory results. Second, we calculate exactly string tree-level three and four-point amplitudes with gauge bosons and one massive graviton and examine string deviations from the field-theory result.

Affiliated with

Also associated with

No associations

Rating

String theory predictions for future accelerators 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 String theory predictions for future accelerators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and String theory predictions for future accelerators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-554223