2007
DOI: 10.1088/1126-6708/2007/01/043
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Interplay of type I and type II seesaw contributions to neutrino mass

Abstract: Type I and type II seesaw contributions to the mass matrix of light neutrinos are inherently related if left-right symmetry is realized at high energy scales. We investigate implications of such a relation for the interpretation of neutrino data. We proved recently that the left-right symmetric seesaw equation has eight solutions, related by a duality property, for the mass matrix of right-handed neutrinos M R . In this paper the eight allowed structures of M R are reconstructed analytically and analyzed numer… Show more

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Cited by 44 publications
(55 citation statements)
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“…[27][28][29][30][31][32][33][34][35]. For instance, if all singlets are relatively light, one can expect that the scale of left-right symmetry is also low.…”
Section: Introductionmentioning
confidence: 99%
“…[27][28][29][30][31][32][33][34][35]. For instance, if all singlets are relatively light, one can expect that the scale of left-right symmetry is also low.…”
Section: Introductionmentioning
confidence: 99%
“…We have discussed the matching with the neutrino oscillation data in detail where, instead of type-I seesaw, we have used hybrid seesaw which is a combination of both type-I and type-II [179][180][181]. Both of the seesaw mechanisms are naturally predicted in matter parity based SO(10) model having their origins rooted in the Higgs representation 126 H and the latter's coupling to the fermions in the spinorial representation 16 through f 16.16.126 † H .…”
Section: Jhep04(2017)075mentioning
confidence: 99%
“…requires the lightest right-handed neutrino to acquire mass M N 1 4 × 10 8 GeV [179][180][181] where…”
Section: Boltzmann Equationsmentioning
confidence: 99%
“…The properties of these solutions have been studied in refs. [13,14,15], and in particular, the eigenvalues and mixing properties were investigated. As in these works, we choose the Yukawa coupling matrix y equal to the up-type quark Yukawa coupling matrix, which can be motivated by GUTs [18,19,20].…”
Section: Left-right Symmetric Modelmentioning
confidence: 99%