A New Method for Computing Helicity Amplitudes

A. Ballestrero; E. Maina

A New Method for Computing Helicity Amplitudes

高能物理 - 唯象学 2007-05-23 v1

作者: A. Ballestrero , E. Maina

摘要

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.

关键词

higher spin theory spin chains

引用

@article{arxiv.hep-ph/9404223,
  title  = {A New Method for Computing Helicity Amplitudes},
  author = {A. Ballestrero and E. Maina},
  journal= {arXiv preprint arXiv:hep-ph/9404223},
  year   = {2007}
}

备注

To appear in Proceedings Nonlinear Phenomena in Complex Systems. Polatsk Belarus. February 94 - 8 pages, 2 figs. using feynman.tex

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