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arXiv · hep-th/0412108

Non-Supersymmetric Loop Amplitudes and MHV Vertices

James Bedford·Andreas Brandhuber·Bill Spence·Gabriele Travaglini
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Abstract

We show how the MHV diagram description of Yang-Mills theories can be used to study non-supersymmetric loop amplitudes. In particular, we derive a compact expression for the cut-constructible part of the general one-loop MHV multi-gluon scattering amplitude in pure Yang-Mills theory. We show that in special cases this expression reduces to known amplitudes - the amplitude with adjacent negative-helicity gluons, and the five gluon non-adjacent amplitude. Finally, we briefly discuss the twistor space interpretation of our result.

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James Bedford, Andreas Brandhuber, Bill Spence, Gabriele Travaglini. 2005-12-15. Non-Supersymmetric Loop Amplitudes and MHV Vertices. https://doi.org/10.1016/j.nuclphysb.2005.01.032

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