A New Method for Helicity Calculations
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
We propose a new helicity formalism based on the formal insertion in spinor lines of a complete set of states build up with unphysical spinors. The method is developed both for massless and massive fermions for which it turns out to be particularly fast. All relevant formulae are given.
Cite
@article{arxiv.hep-ph/9403244,
title = {A New Method for Helicity Calculations},
author = {A. Ballestrero and E. Maina},
journal= {arXiv preprint arXiv:hep-ph/9403244},
year = {2009}
}
Comments
14 pages, 2 figs. using feynman.tex