Feynman rules for fermion number violating interactions

@article{Denner1992FeynmanRF,
  title={Feynman rules for fermion number violating interactions},
  author={Ansgar Denner and H. N. van Eck and O. Hahn and Jill Kublbeck},
  journal={Nuclear Physics},
  year={1992},
  volume={387},
  pages={467-481}
}
We present simple algorithmic Feynman rules for fermion-number-violating interactions. They do not involve explicit charge-conjugation matrices and resemble closely the familiar rules for Dirac fermions. We insist on a fermion flow through the graphs along fermion lines and get the correct relative signs between different interfering Feynman graphs as in the case of Dirac fermions. We only need the familiar Dirac propagator and fewer vertices than in the usual treatment of fermion-number… Expand
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