Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam.
By K. Abe, N. Abgrall, Y. Ajima, H. Aihara, J. Albert, C. Andreopoulos, B. Andrieu, S. Aoki, O. Araoka, J. Argyriades and 396 more. Physical Review Letters, 2011
1,223 citations recorded by the source corpus.
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3) eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7×10(-3), equivalent to 2.5σ significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2θ(13) < 0.28(0.34) for δ(CP) = 0 and a normal (inverted) hierarchy.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2ea1b3887bb06eb22b64fbdb4d546769951172aa
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In Nuclear and High Energy Physics
Citations in the corpus
- Spontaneous CP violation from vacuum alignment in S4 models of leptons (2013, background): “Recent hints [1–3] for a nonzero reactor mixing angle θ13, and its subsequent measurement by the Daya Bay [4], RENO [5] and Double Chooz [6] Collaborations have revealed an unexpectedly large mixing angle of about 9◦ to an accuracy comparable to the other two lepton mixing angles, i.”
- Neutrino mass and mixing with discrete symmetry (2013, methodology): “(2.10) Direct evidence for θ13 was first provided by T2K, MINOS and Double Chooz [12].”
- Research Proposal for an Experiment to Search for the Decay $\mu \to eee$ (2013, methodology): “An Experiment to Search for the Decay µ→ eee [22] K. Abe et al., [T2K Collaboration], “Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam”, Phys.”