Detecting Solar Neutrino Flares and Flavors

Solar and atmospheric neutrino oscillations with three flavors.

We analyze the solar and the atmospheric neutrino problems in the context of three flavour neutrino oscillations. We assume a mass hierarchy in the vacuum mass eigenvalues μ3 ≫ μ2 ≥ μ1, but make no approximation regarding the magnitudes of the mixing angles. We find that there are small but continuous bands in the parameter space where the constraints imposed by the current measurements of Ga, ...

Twisted flavors and tribimaximal neutrino mixing.

A new framework for handling flavor symmetry breaking in the neutrino sector is discussed where the source of symmetry breaking is traced to the global property of right-handed neutrinos in extra-dimensional space. Light neutrino phenomenology has rich and robust predictions such as the tribimaximal form of generation mixing, controlled mass spectrum, and no need of flavor mixing couplings in t...

Solar flares and energetic particles.

Solar flares are now observed at all wavelengths from γ-rays to decametre radio waves. They are commonly associated with efficient production of energetic particles at all energies. These particles play a major role in the active Sun because they contain a large amount of the energy released during flares. Energetic electrons and ions interact with the solar atmosphere and produce high-energy X...

Modeling Solar and Stellar Flares

Neutrino oscillation data versus three light neutrino flavors

Assuming oscillations of solar and LSND neutrinos to explain the corresponding data, we explore how much of the observed atmospheric neutrino anomaly can be accommodated by the hypothesis of only three light neutrino flavors. Standard Model interactions, considered exclusively, are found to allow a universal survival probability, equal to the ratio of ratios R, down to a best-fit value of about...