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arXiv · hep-ph/9404223

A New Method for Computing Helicity Amplitudes

A. Ballestrero·E. Maina
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Abstract

An helicity formalism for perturbative calculations is presented. It is based on the formal insertion in spinor lines of a complete set of states built up with unphysical spinors. It is particularly convenient when massive spinors are present. Its application to $e^+\,e^-\,\rightarrow b\,\bar b\,W^+W^-$ is briefly discussed.

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A. Ballestrero, E. Maina. 1994-04-06. A New Method for Computing Helicity Amplitudes. https://arxiv.org/abs/hep-ph/9404223

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