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The T2K collaboration restarted data taking in early 2012 after recovery efforts from the Great Japan Earthquake of 2011 were completed at J-PARC.  We collected an additional 1.6e20 protons on target, somewhat more than doubling the 2011 data set. We … Continue reading →

The T2K collaboration has submitted our first physics paper to Physical Review Letters. In it we report the most significant evidence to date that muon neutrinos transform into electron neutrinos. This transformation is governed by a previously unmeasured parameter of … Continue reading →