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arXiv 1201.2653hep-thhep-ph
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高维中的简单超级振幅

Simple superamplitudes in higher dimensions

Rutger H. Boels, Donal O'Connell

摘要:

我们提供了简单的超空间的基础上制定旋量螺旋一般甚至尺寸。作为一个显着的特点,这些空间承认一个费米超动量守恒的δ函数解决方案的壳层超对称沃德恒等式。利用这些解,我们给出了八维最大超Yang-Mills理论中完全三点、四点和五点超振幅的简洁公式,以及十维IIB型超引力中三点和四点超振幅的简洁公式。此外,我们讨论了三点振幅的特殊运动学,以及超对称旋量BCFW递归,在一般的尺寸。

英文摘要:

We provide simple superspaces based on a formulation of spinor helicity in general even dimensions. As a distinguishing feature these spaces admit a fermionic super-momentum conserving delta function solution to the on-shell supersymmetry Ward identities. Using these solutions, we present beautifully simple formulae for the complete three, four and five point superamplitudes in maximal super Yang-Mills theory in eight dimensions, and for the three and four point superamplitudes in ten dimensional type IIB supergravity. In addition, we discuss the exceptional kinematics of the three point amplitude, and the supersymmetric spinorial BCFW recursion, in general dimensions.

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