A Test Experiment to Develop a Neutrino Detector with Emulsions for Neutrino-Nucleus Cross Section Measurements at J-PARC

We would like to perform a test experiment to develop a new neutrino detector with nuclear emulsions at the near detector hall of the J-PARC neutrino beam line. The physics aim is to detect neutrino interactions with high efficiency and measure the cross sections of neutrino (νμ/νμ, νe/νe)-nucleus charged/neutral current interactions in around 1 GeV energy region. First, we will perform a preliminary run to study environmental background inside the near detector hall. Then, we will perform a test run to study performance of the new detector and establish the analysis method to study neutrino interactions in the low energy region. Finally, we will perform data taking of physics runs to measure cross sections of neutrino-nucleus interactions with high efficiency.