Regge closed string scattering and its implication on fixed angle closed string scattering

Jen-Chi Lee*, Yi Yang

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We calculate the complete closed string high energy scattering amplitudes (HSA) in the Regge regime for arbitrary mass levels. As an application, we deduce the complete ratios among closed string HSA in the fixed angle regime by using Stirling number identities. These results are in contrast with the incomplete set of closed string HSA in the fixed angle regime calculated previously. The complete forms of the fixed angle amplitudes, and hence the ratios, were not calculable previously without the input of zero-norm state calculation. This is mainly due to the lack of saddle point in the fixed angle closed string calculation.

Original languageEnglish
Pages (from-to)84-88
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume687
Issue number1
DOIs
StatePublished - 5 Apr 2010

Keywords

  • Closed string
  • High energy scatterings

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