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arXiv · 1104.2448

Neutrino mass hierarchy and the origin of leptonic flavor mixing from the right-handed sector

Philipp Leser·Heinrich Päs
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Abstract

We consider a neutrino mass model where all leptonic mixing is induced by a heavy Majorana sector through the seesaw type I mechanism, while the Dirac mass matrices are diagonal. Such a pattern occurs naturally in grand unified theories. Constraints on the parameters of the models are considered and it is shown that a normal neutrino mass hierarchy is preferred. The lightest neutrino mass is typically small, leading to nonobservable rates for neutrinoless double beta decay in the normal hierarchy case.

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Philipp Leser, Heinrich Päs. 2011-07-28. Neutrino mass hierarchy and the origin of leptonic flavor mixing from the right-handed sector. https://doi.org/10.1103/physrevd.84.017303

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