New fit to solar neutrino data in models with large extra dimensions

2001/02/28 by D. O. Caldwell, Rabindra N. Mohapatra, R. N. Mohapatra +1 · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Electron #Lepton #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Solar neutrino #Solar neutrino problem #Sterile neutrino #hep-ph

paper · pdf · doi:10.1103/physrevd.64.073001

published as Phys.Rev.D64:073001,2001 · 20 pages, contains updated SuperK results and references

arxiv created 2001/06/14 · openalex publication_date 2001/08/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

String inspired models with millimeter scale extra dimensions provide a natural way to understand an ultralight sterile neutrino needed for a simultaneous explanation of the solar, atmospheric and Liquid Scintillation Neutrino Detector neutrino oscillation results. The sterile neutrino is the bulk neutrino (\ensuremathν_B) postulated to exist in these models, and it becomes ultralight in theories that prevent the appearance of its direct mass terms. Its Kaluza-Klein (KK) states then add new oscillation channels for the electron neutrino emitted from the solar core. We show that successive Mikheyev-Smirnov-Wolfenstein transitions of solar \ensuremathν_e to the lower lying KK modes of \ensuremathν_B in conjunction with vacuum oscillations between the \ensuremathν_e and the zero mode of \ensuremathν_B provide a new way to fit the solar neutrino data. The characteristic predictions can be tested by solar neutrino observations and forthcoming solar neutrino experiments. We discuss both intermediate and low string scale models where the desired spectrum can emerge naturally.

Citations

• Eleven-dimensional supergravity on a manifold with boundary
• Large Extra Dimensions, Sterile Neutrinos and Solar Neutrino Data
• Four-neutrino mass spectra and the Super-Kamiokande atmospheric up-down asymmetry
• Renormalization of the neutrino mass operator
• Heterotic and Type I string dynamics from eleven dimensions
• The Hierarchy Problem and New Dimensions at a Millimeter
• Three flavour neutrino oscillations in models with large extra dimensions
• Use of nuclear β decay as a test of bulk neutrinos in extra dimensions

Cited by

• Singlet fermions on curved extra dimension tori
• Hybrid model of neutrino masses and oscillations: Bulk neutrinos in the split-fermion scenario