Speaker
Description
The NINJA collaboration aims to study neutrino-nucleus interactions in the energy range of hundreds of MeV to a few GeV using an emulsion-based detector. Nuclear emulsion is suitable for precise measurement of positions and angles of charged particles from neutrino interactions since it has a sub-$\mu$m spatial resolution. It is capable of detecting slow protons as low as 200$\,$MeV/$c$, which is a distinct advantage compared to other detectors. Data in this presentation was taken from the exposure of a 65 kg iron target in 2016 to the anti-neutrino beam corresponding to $3.5\times10^{20}$ protons on target. Based on 770 candidate events of anti-neutrino charged-current interactions in the target, the multiplicities and kinematics of muons, charged pions and protons emitted from the events were measured. The data were compared to Monte Carlo predictions and some significant differences were observed.
