Speaker
Tsutomu Fukuda
(Nagoya University)
Description
We are advancing the NINJA experiment at J-PARC using nuclear emulsion to study low-energy neutrinos in the Sub-Multi GeV range. Currently, we are conducting a physics run aimed at the precise measurement of neutrino-water interactions, which is crucial for reducing systematic uncertainties in long-baseline neutrino oscillation experiments that test CP symmetry violation in the lepton sector. In this presentation, I will report on the status of this experiment. Additionally, we are developing techniques for detecting alpha and beta rays in nuclear emulsion to explore neutrinoless double-beta decay and to study rocks for precise measurement of geoneutrinos. I would also like to introduce these new initiatives.