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arXiv 0910.2688hep-th
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6D极大超Yang-Mills的超扭量空间

Supertwistor space for 6D maximal super Yang-Mills

Tristan Dennen, Yu-tin Huang, Warren Siegel

摘要:

在超空间中利用6维扭子建立了6维最大超杨-米尔斯壳振幅。3,4,5点树振幅通过超对称化它们的玻色子对应物而获得,并通过BCFW构造来确认。与4D相反,这个超空间是非手性的,反映了在6D中不能区分MHV和$\bar{\rm MHV}$的事实。结合么正性方法,该超空间将有助于研究多圈D维最大超Yang-Mills和引力振幅。此外,非手性性质为离壳结构提供了自然框架。我们通过将我们的结果与在射影超空间中表示的离壳D=4 N=4超杨-米尔斯振幅相匹配来证明这一点。

英文摘要:

6D maximal super Yang-Mills on-shell amplitudes are formulated in superspace using 6 dimensional twistors. The 3,4,5-point tree amplitudes are obtained by supersymmetrizing their bosonic counterparts and confirmed through the BCFW construction. In contrast to 4D this superspace is non-chiral, reflecting the fact that one cannot differentiate MHV from $\bar{\rm MHV}$ in 6D. Combined with unitarity methods, this superspace should be useful for the study of multi-loop D dimensional maximal super Yang-Mills and gravity amplitudes. Furthermore, the non-chiral nature gives a natural framework for an off-shell construction. We show this by matching our result with off-shell D=4 N=4 super Yang-Mills amplitudes, expressed in projective superspace.

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