Symmetry of String Scattering Amplitudes

24th International Conference on Integrable Systems and Quantum symmetries

Yang, Yi^1

Department of Electrophysics, National Chiao-Tung University, Hsinchu, Taiwan^1

关键词: Gaussian hypergeometric functions;    Hidden symmetry;    High-energy limit;    Lauricella functions;    Scattering amplitudes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/804/1/012043/pdf
DOI  :  10.1088/1742-6596/804/1/012043

来源: IOP

【 摘 要 】

We explore the hidden symmetry in string theory by studying string scattering amplitudes. We calculate 4-point open string scattering amplitudes with three tachyons and a massive higher spin string state. The result can be expressed as Type D Lauricella functions which are generalization of Gaussian Hypergeometric functions. In various high energy limits, the string amplitudes reduced to the expected results that we obtained previously. We find exact SL (K + 3, ) symmetry for the string amplitudes at general energy.