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Seesaw parametrization for n right-handed neutrinos

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons37613

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

Externe Ressourcen
Volltexte (frei zugänglich)

1207.5521
(Preprint), 411KB

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Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Heeck, J. (2012). Seesaw parametrization for n right-handed neutrinos. Physical Review D, 86(9): 093023, pp. 1-10. doi:10.1103/PhysRevD.86.093023.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-2196-F
Zusammenfassung
Introducing n right-handed neutrinos to the Standard Model yields, in general, massive active neutrinos. We give explicit parametrizations for the involved mixing and coupling matrices in terms of physical parameters for both the top-down and the bottom-up approach, for arbitrary n. Bounds on the complex mixing angles in the bottom-up approach from perturbativity of the Yukawa couplings to charged lepton flavor violation are discussed. As a novel illustration of possible effects from n≠3, we extend the neutrino anarchy framework to arbitrary n; we show that while the anarchic mixing angles are insensitive to the number of singlets, the observed ratios of neutrino masses prefer small n for the simplest linear measure.