New results from the T2K neutrino oscillation experiment

The T2K experiment searches for the appearance of electron neutrinos in a muon neutrino beam. The rate of this process is sensitive to the neutrino mixing parameter θ 13 . Recent measurements that imply that ν μ → ν e oscillations should be observable. Using all data through May 15, 2012 the T2K exp...

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Bibliographic Details
Published inHyperfine interactions Vol. 215; no. 1-3; pp. 77 - 84
Main Author Oser, Scott M.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.03.2013
Subjects
Atomic
Condensed Matter Physics
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Optical and Plasma Physics
Physics
Physics and Astronomy
Surfaces and Interfaces
Thin Films
Neutrino oscillations
T2K
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Summary:The T2K experiment searches for the appearance of electron neutrinos in a muon neutrino beam. The rate of this process is sensitive to the neutrino mixing parameter θ 13 . Recent measurements that imply that ν μ → ν e oscillations should be observable. Using all data through May 15, 2012 the T2K experiment has detected 10 candidate ν e events, with an expected background for θ 13  = 0 of 2.73±0.37 events. This 3.2 σ excess of ν e events is the strongest indication to date for appearance of electron neutrinos in a neutrino oscillation experiment, and for normal mass hierarchy and δ CP  = 0 yields at the 68 % C.L.
ISSN:0304-3843
1572-9540
DOI:10.1007/s10751-013-0798-5