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See-Saw Energy Scale and the LSND Anomaly | Andre de Gouvea
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7 Dec 2004 | Journal: | Phys.Rev. D72 (2005) 033005 | Subject: | hep-ph | Abstract: | The most general, renormalizable Lagrangian that includes massive neutrinos contains ``right-handed neutrino’’ Majorana masses of order M. While there are prejudices in favor of M much larger than the weak scale, virtually nothing is known about the magnitude of M. I argue that the LSND anomaly provides, currently, the only experimental hint: M around 1 eV. If this is the case, the LSND mixing angles are functions of the active neutrino masses and mixing and, remarkably, adequate fits to all data can be naturally obtained. I also discuss consequences of this ``eV-seesaw’’ for supernova neutrino oscillations, tritium beta-decay, neutrinoless double-beta decay, and cosmology. | Source: | arXiv, hep-ph/0501039 | Services: | Forum | Review | PDF | Favorites |
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