Exponential Fall-Off Behavior of Regge Scatterings in Compactified Open String Theory(Particles and Fields)
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概要
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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 Regge 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), 250] which shows the unusual power-law behavior in the high-energy fixed angle compactified string scatterings.
- 2012-11-25
著者
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He Song
Institute Of High Energy Physics Chinese Academy Of Sciences
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Lee Jen-chi
Department Of Electrophysics National Chiao-tang University
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YANG Yi
Department of Electrophysics, National Chiao-Tung University and Physics Division, National Center for Theoretical Sciences:Kavli Institute for Theoretical Physics China
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LEE Jen-Chi
Department of Electrophysics, National Chiao-Tung University and Physics Division, National Center for Theoretical Sciences:Kavli Institute for Theoretical Physics China
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YANG Yi
Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University
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