High-energy symmetry of bosonic open string theory in the light-like linear dilaton background

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.

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High-energy symmetry of bosonic open string theory in the light-like linear dilaton background

Abstract: Hence, our results give a concrete illustration about the relation between high-energy stringy symmetry and the background independent formulation of string theory.

Cited by 4 publications

References 49 publications

Linear dilaton conformal field theory: a generalization

Linear dilaton conformal field theory: a generalization

Attached open strings on aDp-brane in the backgrounds of the pp-wave and linear dilation

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

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