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arXiv 1507.02207hep-th
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超对称Einstein-Yang-Mills理论的树振幅

On tree amplitudes of supersymmetric Einstein-Yang-Mills theory

Tim Adamo, Eduardo Casali, Kai A. Roehrig, David Skinner

摘要:

本文给出了四维超杨-米尔斯耦合爱因斯坦超引力系统中所有单迹树振幅的新公式。像Cachazo-He-Yuan公式一样,我们的表达式也支持散射方程的解,但动量是用旋量螺旋度变量表示的。超对称性和宇称性都是显而易见的。在纯引力和纯杨-米尔斯扇形中,它简化为已知的扭弦公式。我们表明,该公式的行为正确的因式分解和素描如何可以从一个四维(ambi)扭弦获得这些振幅。

英文摘要:

We present a new formula for all single trace tree amplitudes in four dimensional super Yang-Mills coupled to Einstein supergravity. Like the Cachazo-He-Yuan formula, our expression is supported on solutions of the scattering equations, but with momenta written in terms of spinor helicity variables. Supersymmetry and parity are both manifest. In the pure gravity and pure Yang-Mills sectors, it reduces to the known twistor-string formulae. We show that the formula behaves correctly under factorization and sketch how these amplitudes may be obtained from a four-dimensional (ambi)twistor string.

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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