See saw energy scale and the LSND anomaly

André De Gouvêa*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

114 Scopus citations


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 Mweak, 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∼1eV. 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.

Original languageEnglish (US)
Article number033005
Pages (from-to)1-5
Number of pages5
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
StatePublished - Aug 1 2005

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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