The Stony Brook NN group has been participating in the Super-Kamiokande, K2K and T2K experiments in Japan for almost two decades. Currently the group is composed of four faculty members, one postdoctoral research associate, three graduate students and three undergraduate students. Recently, the group's effort has been focused on the T2K (Tokai to Kamioka) experiment, which is in the construction stage and will start taking data in 2009.
T2K is the first long baseline neutrino oscillation experiments proposed and approved for searching for electron neutrino appearance signature from the oscillations of muon neutrinos using accelerator generated neutrino beams. If observed, this will allow us to measure the mixing angle between the 1st and 3rd generation neutrinos, the last unknown mixing angle in the lepton sector. This will also pave the way to explore CP violation in the lepton sector, which may hold a key to our understanding of the matter-antimatter asymmetry in the Universe.
The Stony Brook NN group is heavily involved in the ND280 off-axis pi-zero detector (P0D) and ND280 off-axis detector software. The P0D detector is a component of the T2K near detector system that provides information on the pi-zero background to the electron neutrino appearance signal in the far (Super-Kamiokande) detector. We expect to participate in the data and physics analysis of the experiment vigorously as the data become available.