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arXiv · 1606.01217

Recent results from T2K

Mark Scott
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Abstract

The T2K long-baseline neutrino oscillation experiment has produced the first observation of $ν_{e}$ appearance and the most precise measurement of the mixing angle $θ_{23}$ from $6.57 \times 10^{20}$ protons-on-target (POT) of neutrino beam data. We present here the results of T2K antineutrino oscillation analyses searching for $\barν_{e}$ appearance and measuring the dominant oscillation parameters for $\barν_μ$ disappearance, including the results from the T2K near detector fit. Using $4.01 \times 10^{20}$ POT of antineutrino beam data T2K measured $\sin^{2}(\barθ_{23}) = 0.45^{+0.29}_{-0.12}$ and $|Δ\bar{m}^{2}_{32}| = 2.51\pm0.28 \times 10^{-3} (eV^{2})$, consistent with previous existing $ν_μ$ and $\barν_μ$ disappearance measurements. From the same dataset 3 $\barν_{e}$ candidate events were selected at the far detector, which did not provide evidence either for or against the $\barν_{e}$ appearance hypothesis.

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Mark Scott. 2017-01-03. Recent results from T2K. https://doi.org/10.1393/ncc%2Fi2016-16316-8

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