Neutrino parameters in the Planck-scale lepton number breaking scenario with extended scalar sectors
Cesar Bonilla,
Johannes Herms,
Alejandro Ibarra
et al.
Abstract:Two-loop effects on the right-handed neutrino masses can have an impact on the low-energy phenomenology, especially when the right-handed neutrino mass spectrum is very hierarchical at the cut-off scale. In this case, the physical masses of the lighter right-handed neutrinos can be dominated by quantum effects induced by the heavier ones. Further, if the heaviest right-handed neutrino mass is at around the Planck scale, two-loop effects on the right-handed neutrino masses generate, through the seesaw mechanism… Show more
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