A renormalizable SO(10) GUT scenario with spontaneous CP violation

Autor(en)

Walter Grimus, Helmut Kühböck

Abstrakt

We consider fermion masses and mixings in a renormalizable SUSY SO(10) GUT with Yukawa couplings of scalar fields in the representation 10 + 120 + 126 bar. We investigate a scenario defined by the following assumptions: i) A single large scale in the theory, the GUT scale. ii) Small neutrino masses generated by the type I seesaw mechanism with negligible type II contributions. iii) A suitable form of spontaneous CP breaking which induces hermitian mass matrices for all fermion mass terms of the Dirac type. Our assumptions define an 18-parameter scenario for the fermion mass matrices for 18 experimentally known observables. Performing a numerical analysis, we find excellent fits to all observables in the case of both the normal and inverted neutrino mass spectrum.

Organisation(en)

Teilchenphysik

Journal

European Physical Journal C

Band

51

Seiten

721-729

Anzahl der Seiten

9

ISSN

1434-6044

DOI

https://doi.org/10.1140/epjc/s10052-007-0324-5

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a-renormalizable-so10-gut-scenario-with-spontaneous-cp-violation(99a8df73-5d21-400b-a94d-a8943ee326d8).html