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General parametrization of Majorana neutrino mass models

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arxiv 1912.08858 v2 pith:GAKUT7OV submitted 2019-12-18 hep-ph hep-th

classification hep-phhep-th
keywords neutrinogeneralmassmodelsdiscussmajoranaparametrizationadditional
verification ladder T0 review T1 audit T2 compute T3 formal
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We discuss a general formula which allows to automatically reproduce experimental data for Majorana neutrino mass models, while keeping the complete set of the remaining model parameters free for general scans, as necessary in order to provide reliable predictions for observables outside the neutrino sector. We provide a proof of this master parametrization and show how to apply it for several well-known neutrino mass models from the literature. We also discuss a list of special cases, in which the Yukawa couplings have to fulfill some particular additional conditions.

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    hep-ph 2025-07 conditional novelty 6.0 of 10

    An electroweak gauge extension with a heavy scalar triplet realizes radiative neutrino masses and an accidental Z2 dark matter parity, with naturally small lepton number violation.

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