標題: Exponential Fall-Off Behavior of Regge Scatterings in Compactified Open String Theory
作者: He, Song
Lee, Jen-Chi
Yang, Yi
電子物理學系
Department of Electrophysics
公開日期: 1-Nov-2012
摘要: We calculate massive string scattering amplitudes of compactified open string in the Regge regime. We extract the complete infinite ratios among high-energy amplitudes of different string states in the fixed angle regime from these Regge string scattering amplitudes. The complete ratios calculated by this indirect method include and extend the subset of ratios calculated previously [J. C. Lee and Y. Yang, Nucl. Phys. B 784 (2007), 22; J. C. Lee, T. Takimi and Y. Yang, Nucl. Phys. B 804 (2008), 250] by the more difficult direct fixed angle calculation. In this calculation of compactified open string scattering, we discover a realization of arbitrary real values L in the identity Eq. (4.18), rather than integer value only in all previous high-energy string scattering amplitude calculations. The identity in Eq. (4-18) was explicitly proved recently in [J. C. Lee, C. H. Yan and Y. Yang, SIGMA 8 (2012), 045, arXiv:1012.5225] to link fixed angle and Rogge string scattering amplitudes. In addition, we discover a kinematic regime with stringy highly winding modes, which shows the unusual exponential fall-off behavior in the Regge string scattering. This is complimentary with a kinematic regime discovered previously [J. C. Lee, T. Takimi and Y. Yang, Nucl. Phys. B 804 (2008), 2501 which shows the unusual power-law behavior in the high-energy fixed angle compactified string scatterings.
URI: http://dx.doi.org/10.1143/PTP.128.887
http://hdl.handle.net/11536/20887
ISSN: 0033-068X
DOI: 10.1143/PTP.128.887
期刊: PROGRESS OF THEORETICAL PHYSICS
Volume: 128
Issue: 5
起始頁: 887
結束頁: 901
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