树级开弦振幅的壳上递推关系的一般表达式

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-09-24 DOI:10.1016/j.physletb.2024.139038

Pongwit Srisangyingcharoen

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引用次数: 0

摘要

在本文中，我们提出了一种系统的推导方法，旨在获得树级开弦振幅的壳上递推关系的一般表达式。我们的方法是将 BCFW 移位应用于以多个高斯超几何函数写成的开弦振幅。通过使用二项式展开，我们证明了移位后的振幅表现出简单的极点，这些极点对应于中间态的散射通道。利用残差定理，我们推导出了这些关系的一般表达式。

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General expressions for on-shell recursion relations for tree-level open string amplitudes

In this paper, we present a systematic derivation aimed at obtaining general expressions for on-shell recursion relations for tree-level open string amplitudes. Our approach involves applying the BCFW shift to an open string amplitude written in terms of multiple Gaussian hypergeometric functions. By employing binomial expansions, we demonstrate that the shifted amplitudes manifest simple poles, which correspond to scattering channels of intermediate states. Using the residue theorem, we thereby derive a general expression for these relations.

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.