K2K

K2K (for KEK to Kamioka) is a Japanese experiment of Physique particles, which relates to the Neutrino S. KEK being the research center of Tsukuba (north-eastern of Tokyo) where the muon Neutrino S are created and Kamioka is the name of the site of the detector Super-Kamiokande (SK).

The muon flow of neutrinos with KEK will be measured by a close detector. One will be able to thus predict the number of neutrinos that SK should measure if the neutrinos did not oscillate, like their spectrum in energy. However, one observes a number and a spectrum of muon neutrinos incompatible with this theory. That means that the muon neutrinos oscillated in another type of neutrinos, electronic, taunic or a type up to now unknown. Their disappearance was thus observed, which constrained the parameters of oscillation towards other types of neutrinos, drank experiment.

External bond

http://neutrino.kek.jp/

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