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

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

2004-10-18

arxiv.org/abs/hep-th/0410179v3

Phys.Rev. D71 (2005) 025012

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, harvmac, 2 figures. v2: Minor corrections, typos fixed, Appendix B added. v3: Note added at end of introduction, par

Scientific paper

10.1103/PhysRevD.71.025012

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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