feynlag.vertices.bilinear.majorana_feynman_rule¶

feynlag.vertices.bilinear.majorana_feynman_rule(coefficient, gamma, boson_tuple=())[source]¶

Majorana FFS/FFSS rule: i × coefficient × ∏(boson mult)! × (CΓ).

Mirrors fermion_feynman_rule() but the Dirac structure carries the charge-conjugation C (gamma = diracC·P_L …).