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Minimal seesaw model with S4 flavor symmetry

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons31207

Zhang,  He
Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

Externe Ressourcen
Volltexte (frei zugänglich)

1104.0380
(Preprint), 857KB

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Zitation

Yang, R.-Z., & Zhang, H. (2011). Minimal seesaw model with S4 flavor symmetry. Physics Letters B, 700(5), 316-321. doi:10.1016/j.physletb.2011.05.014.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000E-F548-5
Zusammenfassung
We discuss a neutrino mass model based on the S4 flavor symmetry within the minimal seesaw framework, in which only two right-handed neutrinos are introduced and transform as 2 under S4. Although the model contains less free parameters compared to the typical seesaw models, it provides a successful description of the observed neutrino parameters, and in particular, a nearly tri-bimaximal mixing pattern can be naturally accommodated. In addition, the heavy right-handed neutrino masses are found to be non-degenerate, while only the normal hierarchical mass spectrum is compatible with experiments for light neutrinos.