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arXiv · hep-th/0410179

Computing One-Loop Amplitudes From The Holomorphic Anomaly Of Unitarity Cuts

Ruth Britto·Freddy Cachazo·Bo Feng
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Abstract

We propose a systematic way to carry out the method introduced in hep-th/0410077 for computing certain unitarity cuts of one-loop N=4 amplitudes of gluons. We observe that the class of cuts for which the method works involves all next-to-MHV n-gluon one-loop amplitudes of any helicity configurations. As an application of our systematic procedure, we obtain the complete seven-gluon one-loop leading-color amplitude A_{7;1}(1-,2-,3-,4+,5+,6+,7+).

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Ruth Britto, Freddy Cachazo, Bo Feng. 2004-11-05. Computing One-Loop Amplitudes From The Holomorphic Anomaly Of Unitarity Cuts. https://doi.org/10.1103/physrevd.71.025012

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