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Journal Article

Sterile Neutrino Anarchy

MPS-Authors
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;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30951

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

Fulltext (public)

1211.5295
(Preprint), 574KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Heeck, J., & Rodejohann, W. (2013). Sterile Neutrino Anarchy. Physical Review D, 87(3): 037301, pp. 1-5. doi:10.1103/PhysRevD.87.037301.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-AB76-2
Abstract
Lepton mixing, which requires physics beyond the Standard Model, is surprisingly compatible with a minimal, symmetryless and unbiased approach, called anarchy. This contrasts with highly involved flavor symmetry models. On the other hand, hints for light sterile neutrinos have emerged from a variety of independent experiments and observations. If confirmed, their existence would represent a groundbreaking discovery, calling for a theoretical interpretation. We discuss anarchy in the two-neutrino eV-scale seesaw framework. The distributions of mixing angles and masses according to anarchy are in agreement with global fits for the active and sterile neutrino parameters. Our minimal and economical scenario predicts the absence of neutrinoless double beta decay and one vanishing neutrino mass, and can therefore be tested in future experiments.