Speaker
Description
The goal of the current work is an upgrade of the heavy neutrinos search with T2K near detector ND280. The poster represents current status of the aforementioned upgrade and main results of the previous analysis.
First reason for the upgrade is availability of the new statistics since year 2018. Secondly, in previous analysis charged pions decays to heavy neutrinos were not taken into account. Including charged pions decays alongside with charged kaons decays will allow to increase statistics in low HNL mass range. Thirdly, published in year 2018 T2K’s upper limits on mixing elements are still competitive. Moreover, the contribution of both negative and positive charged mesons decays will be considered for each (neutrino/antineutrino) magnets operation mode in order to increase statistics.
