MHV vertices and scattering amplitudes in gauge theory
MHV vertices and scattering amplitudes in gauge theory
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规范理论中的 MHV 顶点和散射振幅
DOI：
10.1088/1126-6708/2004/07/032
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发表时间：
2004
影响因子：
5.4
通讯作者：
Chuan
中科院分区：
文献类型：
--
作者：
Jun;Chuan
利用规范理论中微扰计算的Cachazo-Svrcek-维滕方法计算了规范理论中的广义Googly振幅，所得结果与已知结果一致.在这种方法中，我们还讨论了宇称变换，电荷共轭和对偶沃德恒等式。我们还将这种计算推广到费米子，并从费米子MHV顶点正确地得到了单个夸克-反夸克对的Googly振幅。最后，我们简要地讨论了这种方法对引力的可能扩展。
The generic googly amplitudes in gauge theory are computed by using the Cachazo-Svrcek-Witten approach to perturbative calculation in gauge theory and the results are in agreement with the previously well-known ones. Within this approach we also discuss the parity transformation, charge conjugation and the dual Ward identity. We also extend this calculation to include fermions and the googly amplitudes with a single quark-anti-quark pair are obtained correctly from fermionic MHV vertices. At the end we briefly discuss the possible extension of this approach to gravity.