Thank to the stable operation of the J-PARC proton accelerator at the power of 470-475kW, T2K neutrino data was almost doubled in one year and a total exposure of $2.65\times10^{21}$ POT has been collected by the end of 2017. Along with this achievement, T2K has improved substantially the oscillation analyses by introducing a new selection, adding a new signal sample and understanding better...
We report the first measurement of monoenergetic muon neutrino charged current interactions. MiniBooNE has isolated 236 MeV muon neutrino events originating from charged kaon decay at rest ($K^+ → μ+ν_μ$) at the NuMI beamline absorber. These signal $ν_μ$-carbon events are distinguished from primarily pion decay in flight $ν_μ$ and $\overline{ν}_μ$ backgrounds produced at the target station and...
The sensitivity of beam dump experiments to heavy neutral leptons depends on the relative strength of their couplings to individual lepton flavours in the Standard Model. We study the impact of present neutrino oscillation data on these couplings in the minimal type I seesaw model and find that it significantly constrains the allowed heavy neutrino flavour mixing patterns. We estimate the...
The MicroBooNE LArTPC-based experiment has been taking data at
Fermilab since late 2015. The experiment's neutrino interaction,
oscillation, exotic search, and detector physics goals, and overall
progress will be discussed. In particular, we will show results from
an analysis of charged particle multiplicity in neutrino charged
current interactions and will present a number of detector...
