I am reading Mukhanov's 'Physical Foundations of Cosmology'. He claims that in the minimal SU(5) model, CP violation of a heavy SU(5) gauge boson X decay arises at the tenth order of perturbation theory.(adsbygoogle = window.adsbygoogle || []).push({});

Is that correct? The tenth order perturbation theory would lead to a very complicated diagram and why one loop correction doesn't contribute?

Btw, what confuses me is on page 212.

Thanks

**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!

# SU(5) model, gauge boson decay

Loading...

Similar Threads - model gauge boson | Date |
---|---|

I Radiation modeling software (radiation blocking qualities) | Feb 20, 2018 |

I Local Gauge invariance | Sep 13, 2016 |

Antiparticles of Standard Model gauge bosons | Aug 14, 2015 |

Standard model gauge anomaly cancellation | Apr 30, 2014 |

Exact Gauge Symmetry of the Standard Model | Sep 2, 2009 |

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