Speaker
Description
Tokai to Kamioka is a long baseline neutrino oscillation experiment in Japan. The primary goal of the T2K experiment is to investigate neutrino oscillations and CP-violation using neutrino and antineutrino beams. To make precision measurements of these oscillations, the un-oscillated beam is characterised using the off-axis near detector, ND280, at the Japan Proton Accelerator Research Complex (J-PARC). The beam is then characterised again after travelling 295 km at the far detector. Recent Gd doping of the T2K far detector, Super-Kamiokande, has increased ability to tag antineutrinos through the presence of a final state neutron. In this talk, the importance of an ND280 neutron sample will be discussed and the first results of a charged current sample in ND280 with neutrons tagged using the Electromagnetic Calorimeters is presented. The treatment of additional systematics will be discussed as well as motivation to extend the signal definition using the ND280 Super Fine Grained Detector.