منابع مشابه
Seesaw Mechanism and the Neutrino Mass Matrix
The seesaw mechanism of neutrino mass generation is analysed under the following assumptions: (1) minimal seesaw with no Higgs triplets, (2) hierarchical Dirac masses of neutrinos, (3) large lepton mixing primarily or solely due to the mixing in the right-handed neutrino sector, and (4) unrelated Dirac and Majorana sectors of neutrino masses. It is shown that large mixing governing the dominant...
متن کاملSeesaw Neutrino Mass Ratios with Radiative Corrections
Unlike neutrino masses, the ratios of neutrino masses can be predicted by up-quark seesaw models using the known quark masses and including radiative corrections, with some restrictive assumptions. The uncertainties in these ratios can be reduced to three: the type of seesaw (quadratic, linear, etc.), the top quark mass, and the Landau-triviality value of the top quark mass. The inconclusive bu...
متن کاملSeesaw mechanism and structure of neutrino mass matrix
We consider the seesaw mechanism of neutrino mass generation in the light of our present knowledge of the neutrino masses and mixing. We analyse the seesaw mechanism constrained by the following assumptions: (1) minimal seesaw with no Higgs triplets, (2) hierarchical Dirac masses of neutrinos, (3) large lepton mixing primarily or solely due to the mixing in the right-handed neutrino sector, and...
متن کاملRadiative Inverse Seesaw: Verifiable New Mechanism of Neutrino Mass
If the canonical seesaw mechanism alone is responsible for neutrino mass, i.e. mν ≃ −m 2 D/mN , it can neither be proved nor disproved at the TeV energy scale. A new verifiable mechanism of neutrino mass is proposed, using the inverse seesaw, with new physics at the TeV scale, such that mν ≃ m 2 DǫL/m 2 N , where ǫL is a two-loop effect. Dark-matter candidates also appear naturally. Introductio...
متن کاملNeutrino Seesaw Revelation
If it can be ascertained experimentally that the 3 × 3 Majorana neutrino mass matrix Mν has vanishing determinants for one or more of its 2 × 2 submatrices, the theoretically well-known canonical seesaw mechanism may be revealed as its progenitor. I show how these two things are connected and offer a realistic Mν with two zero subdeterminants as an example. It is a common theoretical belief in ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2011
ISSN: 1029-8479
DOI: 10.1007/jhep06(2011)098