First observation of T2K neutrino event at Super-Kamiokande This
observation could help answer questions about why there is more
matter than anti-matter in the universe. February 26, 2010
Provided by the Science and Technology Facilities Council,
United Kingdom February 26, 2010 Super-Kamiokande, located in a
zinc mine under the Japanese Alps, detects neutrinos as they
pass through a 12.5-million-gallon, 10-story-high tank of
ultrapure water. Photo by Institue for Cosmic Ray Research, The
University of Tokyo United Kingdom particle physicists working
on the multinational Tokai-to-Kamioka (T2K) project, which is
designed to detect some of the least understood particles in the
universe, have helped track the first neutrino that has traveled
185 miles (295 km) under Japan. The detection of the neutrino as
it passed from the East to the West of the country means the
study of the mysterious phenomenon of neutrino oscillations,
which it is hoped will shed more light on the role of the
neutrino in the early universe