Simple Connection Between Atmospheric and Solar Neutrino Vacuum Oscillations

Details Simple Connection Between Atmospheric and Solar Neutrino Vacuum Oscillations Simple Connection Between Atmospheric and Solar Neutrino Vacuum Oscillations

1999-02-18

arxiv.org/abs/hep-ph/9902392v2

Phys.Rev.Lett. 83 (1999) 2514-2517

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.83.2514

Extending the minimal standard model of particle interactions (without right-handed singlet neutrinos) to include a heavy scalar triplet $\xi$ to obtain nonzero Majorana neutrino masses, I derive the following simple realistic connection between atmospheric and solar neutrino vacuum oscillations: $(\Delta m^2)_{sol} (\Delta m^2)_{atm} / m_\nu^4 ~(\sin^2 2 \theta)_{atm} = 2 I^2$, where $m_\nu$ is the assumed common approximate mass of each neutrino (which may be suitable for hot dark matter) and $I = (3/16 \pi^2)(G_F/\sqrt 2) m_\tau^2 \ln (m_\xi^2/m_W^2)$ comes from the radiative splitting of the degeneracy due to the charged leptons.

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