Srubabati Goswami (PRL)

Synergy between atmospheric and long-baseline neutrino experiments in determination of oscillation parameters

Abstract: Oscillation of atmospheric neutrinos was first established conclusively by the Super-Kamiokande experiment. This was later confirmed by the long-baseline beam based experiments K2K, MINOS and more recently T2K and NOVA. The unknown neutrino oscillation parameters at present are the tmass hierarchy, octant of $\theta_{23}$ and the CP phase $\delta_{CP}$. One of the main problems in unambiguous determination of these parameters is the occurrence of degneracies . In this talk I will discuss the various degeneracies that hinder the definitive determination of these parameters . I will also discuss how the combination of long-baseline and atmospheric neutrino data can help in resolving some of these issues.