Constraints on neutrino decay lifetime using long-baseline charged and neutral current data

We investigate the status of a scenario involving oscillations and decay for charged and neutral current data from the MINOS and T2K experiments. We first present an analysis of charged current neutrino and anti-neutrino data from MINOS in the framework of oscillation with decay and obtain a best fit for non-zero decay parameter alpha(3). The MINOS charged and neutral current data analysis results in the best fit for vertical bar Delta m(32)(2)vertical bar = 2.34 x10(-3) eV(2), sin(2) theta(23) = 0.60 and zero decay parameter, which corresponds to the limit for standard oscillations. Our combined MINOS and T2K analysis reports a constraint at the 90% confidence level for the neutrino decay lifetime tau(3)/m(3) > 2.8 x 10(-12) s/eV. This is the best limit based only on accelerator produced neutrinos. (C) 2014 The Authors. Published by Elsevier B.V.