Abstract
The T2K experiment observes indications of appearance in data accumulated with protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with , and , the expected number of such events is . Under this hypothesis, the probability to observe six or more candidate events is , equivalent to significance. At 90% C.L., the data are consistent with for and a normal (inverted) hierarchy.
- Received 13 June 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.041801
© 2011 American Physical Society
Viewpoint
A new neutrino oscillation
Published 18 July 2011
The T2K collaboration in Japan sees strong hints of muon neutrino to electron neutrino oscillation.
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