I have drawn five connected diagrams that arise in ##\phi^4## theory. I was wondering if the symmetry factors I have for each of them are correct and if I have missed any graphs. I only want to consider the case of ##V=3, ## with ## J=0,...4## in turn. (V: number of vertices which i denoted by a cross and J: number of source points denoted by a bold circle)(adsbygoogle = window.adsbygoogle || []).push({});

If I have this case understood I am comfortable i could do other cases.

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Symmetry factors of some diagrams

Loading...

Similar Threads for Symmetry factors diagrams |
---|

A Conformal symmetry, qed and qcd |

I ##A_\mu^a=0## in global gauge symmetries ? |

A Symmetries in particle physics |

B Electroweak spontaneous symmetry breaking |

A Any good idea how non-abelian gauge symmetries emerge? |

**Physics Forums | Science Articles, Homework Help, Discussion**