publication . Article . 2005

Seesaw energy scale and the LSND anomaly

André de Gouvêa;
Open Access
  • Published: 11 Aug 2005 Journal: Physical Review D, volume 72 (issn: 1550-7998, eissn: 1550-2368, Copyright policy)
  • Publisher: American Physical Society (APS)
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>>M{sub weak}, virtually nothing is known about the magnitude of M. I argue that the Liquid Scintillator Neutrino Detector (LSND) anomaly provides, currently, the only experimental hint: M{approx}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 doub...
Subjects
arXiv: High Energy Physics::ExperimentHigh Energy Physics::PhenomenologyPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: Nuclear and High Energy Physics, Liquid Scintillator Neutrino Detector, Particle physics, Neutrino oscillation, MAJORANA, Nuclear physics, Physics, Invariant mass, Double beta decay, Weinberg angle, Seesaw molecular geometry, Neutrino
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