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arXiv 1003.1732hep-thhep-ph
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胶子内部的对偶恒等式与引力子散射振幅

Dual Identities inside the Gluon and the Graviton Scattering Amplitudes

S. -H. Henry Tye, Yang Zhang

摘要:

最近,Bern,Carrasco和Johansson在胶子树散射振幅中建立了对偶恒等式。在本文中,我们利用杂化弦和开弦树的散射振幅的性质来精化和导出这些对偶恒等式。这些恒等式可以用么正性方法来表示回线振幅。此外,给定$M$ -胶子(以及胶子-胶子)树振幅,$M$ -引力子(以及引力子-引力子)树散射振幅可以立即写下来,避免了费曼规则的推导和费曼图的引力子散射振幅的评估。

英文摘要:

Recently, Bern, Carrasco and Johansson conjectured dual identities inside the gluon tree scattering amplitudes. In this paper, we use the properties of the heterotic string and open string tree scattering amplitudes to refine and derive these dual identities. These identities can be carried over to loop amplitudes using the unitarity method. Furthermore, given the $M$-gluon (as well as gluon-gluino) tree amplitudes, $M$-graviton (as well as graviton-gravitino) tree scattering amplitudes can be written down immediately, avoiding the derivation of Feynman rules and the evaluation of Feynman diagrams for graviton scattering amplitudes.

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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