Mixing Renormalization in Majorana Neutrino Theories
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
The renormalization of general theories with inter-family mixing of Dirac and/or Majorana fermions is studied at the one-loop electroweak order. The phenomenological significance of the mixing-matrix renormalization is discussed, within the context of models based on the SU(2)_L x U(1)_Y gauge group. The effect of radiative neutrino masses present in these models is naturally taken into account in this formulation. As an example, charged-lepton universality in pion decays is investigated in the heavy- neutrino limit. Non-decoupling heavy-neutrino effects induced by mixing renormalization are found to considerably affect the predictions in these new-physics scenarios.
Cite
@article{arxiv.hep-ph/9601390,
title = {Mixing Renormalization in Majorana Neutrino Theories},
author = {Bernd A. Kniehl and Apostolos Pilaftsis},
journal= {arXiv preprint arXiv:hep-ph/9601390},
year = {2009}
}
Comments
24 pages (3 figures included), LaTeX