Embedding the Zee-Wolfenstein neutrino mass matrix in an SO(10) x A(4) GUT scenario

Autor(en)

Walter Grimus, Helmut Kühböck

Abstrakt

We consider renormalizable SO(10) Yukawa interactions and put the three fermionic 16-plets into the 3-dimensional irreducible A(4) representation. Scanning the possible A(4) representation assignments to the scalars, we find a unique case which allows one to accommodate the down-quark and charged-lepton masses. Assuming type II seesaw dominance, we obtain a viable scenario with the Zee-Wolfenstein neutrino mass matrix, i.e., the Majorana mass matrix with a vanishing diagonal. Contributions from the charged-lepton mass matrix resolve the well-known problems with lepton mixing arising from the vanishing diagonal. In our scenario, fermion masses and mixings are well reproduced for both normal and inverted neutrino mass spectra, and b-tau Yukawa unification and definite predictions for the effective mass in neutrinoless double-beta decay are obtained.

Organisation(en)

Teilchenphysik

Journal

Physical Review D

Band

77

ISSN

1550-7998

DOI

https://doi.org/10.1103/PhysRevD.77.055008

Publikationsdatum

2008

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/25a3e973-0d43-476c-967c-9e8a9a0e5967