What is the Lagrangian of interaction of photon and spin zero charge scalar?The vertex of photon and spin 1/2 charge fermion is proportional with e multiplied vertor gamma matrix,but I do not know what is the vertex of photon and charge scalar.I hear that a vertex is proportional with polynomial of vector momenta(in general case) but I do not understand why.(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums - The Fusion of Science and Community**

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

# What is the Lagrangian of interaction of photon and spin zero scalar?

Loading...

Similar Threads - Lagrangian interaction photon | Date |
---|---|

I QCD Lagrangian | Feb 28, 2018 |

QED Interaction Lagrangian with two different fermions | Jun 6, 2013 |

Question about Lagrangian in electromagnetic interaction | Aug 16, 2011 |

How does interacting Lagrangian have form of product of fields? | Nov 27, 2010 |

QED Lagrangian lead to self-interaction? | Jul 16, 2008 |

**Physics Forums - The Fusion of Science and Community**