Speaker
Dr
Alexander Quiroga
(PUC-Rio)
Description
We study the signatures of decaying neutrino scenario in T2HKK experiment. Considering a combination of disappearance and appearance channels, for a normal mass ordering and assuming that the heaviest neutrino eigenstate decays, we show by performing an $\chi^2$ analysis, that the $\nu_3$ lifetime divided by its mass can be constrained to $\tau_{3}/m_{3} > 9.4\times 10^{-11} $ s/eV at 95$\%$ CL (preliminary result). We also perform a combined analysis of T2HKK and T2HK experiments, aiming to obtain an stronger bound. The effect of neutrino decay on the determination of oscillation parameters, $\sin^2\theta_{23}$ and $\Delta m^{2}_{31}$, will be discussed.
Primary authors
Dr
Alexander Quiroga
(PUC-Rio)
Prof.
Arman Esmaili
(PUC-Rio)
Dr
Francesco Pessina
(PUC-Rio)
Prof.
Hiroshi Nunokawa
(PUC-Rio)
