Title: Regge closed string scattering and its implication on fixed angle closed string scattering
Authors: Lee, Jen-Chi
Yang, Yi
Department of Electrophysics
Keywords: Closed string;High energy scatterings
Issue Date: 5-Apr-2010
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. (C) 2010 Elsevier By. All rights reserved.
URI: http://dx.doi.org/10.1016/j.physletb.2010.03.004
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2010.03.004
Volume: 687
Issue: 1
Begin Page: 84
End Page: 88
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