physicists and 2000 engineers have combined forces to fire a beam of
muon-type neutrinos 295 km across Japan, from J-PARC in Tokai to
Kamioka. The beam is received by the Super-Kamiokande detector, where
scientists attempt to measure the oscillation between muon and tau
neutrinos. However neutrinos react very weakly and most are not captured
by the detector, so continue into space. Due to this, the detector has
to be very large.
In the future, upgrades to T2K could lead to
measuring the CP violation by comparing oscillations of neutrinos to
those of antineutrinos. These developments could aid the search for an
explanation as to why we don't see equal amounts of matter and
antimatter. The project will also use MPPCs (Multi-pixel Photon
Counters) and is therefore helping to develop these.