2001/09/25 by Ernest Ma, G. Rajasekaran · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Degenerate energy levels #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Quantum mechanics #Seesaw mechanism #Solar neutrino #Solar neutrino problem #Sterile neutrino #hep-ph
paper · pdf · doi:10.1142/s0217732301005679
published in Modern Physics Letters A 16(34), 2207-2211 (World Scientific) · 8 pages, no figure
arxiv created 2001/09/25 · openalex publication_date 2001/11/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We explore the possibility that the three active (doublet) neutrinos have nearly degenerate masses which are split only by the usual seesaw mechanism from three sterile (singlet) neutrinos in the presence of a softly broken A 4 symmetry. We take the unconventional view that the sterile neutrinos may be light, i.e. less than 1 keV, and discuss some very interesting and novel phenomenology, including a connection between the LSND neutrino data and solar neutrino oscillations.