On-shell renormalization of the mixing matrices in Majorana neutrino theories
نویسندگان
چکیده
منابع مشابه
Mixing Renormalization in Majorana Neutrino Theories
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⊗U(1)Y gauge group. The effect of radiative neutrino masses present in these models is naturally taken into account in ...
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The renormalization group evolution equation for two neutrino mixing is known to exhibit nontrivial fixed point structure corresponding to maximal mixing at the weak scale. The presence of the fixed point provides a natural explanation of the observed maximal mixing of νμ − ντ if the νμ and ντ are [email protected] [email protected] [email protected] [email protected]...
متن کاملGauge dependence of the on-shell renormalized mixing matrices
It was recently pointed out that the on-shell renormalization of the CabibboKobayashi-Maskawa (CKM) matrix in the method by Denner and Sack causes gauge parameter dependence of the amplitudes. We analyze the gauge dependence of the on-shell renormalization of the mixing matrices both for fermions and scalars in general cases, at the one-loop level. We then show that this gauge dependence can be...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2009
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2009.03.025