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arXiv 2109.08601hep-thhep-phmath-phmath.MP
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玻色弦散射振幅的留数和Lauricella函数

Residues of bosonic string scattering amplitudes and the Lauricella functions

Sheng-Hong Lai, Jen-Chi Lee, Yi Yang

摘要:

利用弦散射振幅(SSA)的壳层上递推关系,计算了所有n点Koba-Nielsen(KN)振幅的留数。此外,我们表明,包括KN振幅的所有SSA的残基可以表示的Lauricella功能。这一结果证明了树能级开玻色弦论的精确SL(K+3,C)对称性。此外,我们推导出一个迭代关系之间的残留量给定的SSA。这种迭代关系与SL(K+3,C)对称性有关,并且可以被推测用于软化众所周知的硬SSA。

英文摘要:

We calculate explicitly residues of all n-point Koba-Nielsen (KN) amplitudes by using on-shell recursion relation of string scattering amplitudes (SSA). In addition, we show that the residues of all SSA including the KN amplitudes can be expressed in terms of the Lauricella functions. This result demonstrates the exact SL(K+3,C) symmetry of the tree-level open bosonic string theory. Moreover, we derive an iteration relation among the residues of a given SSA. This iteration relation is related to the SL(K+3,C) symmetry and can presumably be used to soften the well-known hard SSA.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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