Late Time Neutrino Masses, the LSND Experiment and the Cosmic Microwave Background

Abstract

Models with low-scale breaking of global symmetries in the neutrino sector provide an alternative to the seesaw mechanism for understanding why neutrinos are light. Such models can easily incorporate light sterile neutrinos required by the LSND experiment. Furthermore, the constraints on the sterile neutrino properties from nucleosynthesis and large scale structure can be removed due to the non-conventional cosmological evolution of neutrino masses and densities. We present explicit, fully realistic supersymmetric models, and discuss the characteristic signatures predicted in the angular distributions of the cosmic microwave background.

4 pages, revtex4

References in corpus (6)

• Cosmological parameters from SDSS and WMAP
• Signatures of Relativistic Neutrinos in CMB Anisotropy and Matter Clustering
• Probing oscillations into sterile neutrinos with cosmology, astrophysics and experiments
• Neutrinoless Universe
• CMB Signals of Neutrino Mass Generation
• Why Are Neutrinos Light? -- An Alternative

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