Speaker
Description
We consider the standard three-generation framework augmented by an extra sterile neutrino in the mass range (Δm$^2_{41}=10^{-4}:1 eV^2$). In this picture, four mass spectrums are possible due to unknown signs of the atmospheric (Δm$^2_{31}$) and sterile (Δm$^2_{41}$) mass-squared differences. We study how the sensitivity to the ordering of the active states and the octant of mixing angle $\theta_{23}$ get affected in this scenario. We also discuss the possible determination of sign of Δm$^2_{41}$. This analysis is done in the context of a liquid argon detector using beam neutrinos traveling a distance of 1300 km and atmospheric neutrinos propagating through a distance $10-10^4$ km, allowing resonant matter effects. We present separate results from these sources, do a combined study, and probe the synergy between these two to give an enhanced sensitivity. We also discuss the implications for cosmology, beta decay, and neutrinoless double beta decay in presence of a sterile neutrino.
| Alternate track | 02. Neutrino Physics |
|---|---|
| I read the instructions above | Yes |
