First combined analysis of neutrino and antineutrino oscillations at T2K

By K. Abe, J. Amey, C. Andreopoulos, M. Antonova, S. Aoki, A. Ariga, D. Autiero, S. Ban, M. Barbi, G. Barker and 306 more. 2017

180 citations recorded by the source corpus.

T2K reports its first results in the search for CP violation in neutrino oscillations using appearance and disappearance channels for neutrino- and antineutrino-mode beam. The data include all runs from Jan 2010 to May 2016 and comprise $7.482\times10^{20}$,protons on target in neutrino mode, which yielded in the far detector 32 e-like and 135 $\mu$-like events, and $7.471\times10^{20}$,protons on target in antineutrino mode which yielded 4 e-like and 66 $\mu$-like events. Reactor measurements of $\sin^{2}2\theta_{13}$ have been used as an additional constraint. The one-dimensional confidence interval at 90% for $\delta_{CP}$ spans the range ($-3.13$, $-0.39$) for normal mass ordering. The CP conservation hypothesis ($\delta_{CP}=0,\pi$) is excluded at 90% C.L.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/331feaa33c009731340d9a728892ea137346a137

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In Nuclear and High Energy Physics

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Citations in the corpus

• Global constraints on absolute neutrino masses and their ordering (2017, background): “1, in qualitative accord with the official T2K data analysis constrained by reactor data [42].”
• Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics (2020, methodology): “The complete data set used, as well as the parameters to which they are sensitive, are (1) from solar neutrino data [298, 413, 414, 415, 416, 417, 418, 419, 420, 421]: θ12, ∆m(2)21, and θ13; (2) from neutrino mode in long-baseline experiments K2K [422], MINOS [423, 424], T2K [425, 426], and NOνA [42”
• Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment (2020, methodology): “set used, as well as the parameters to which they are sensitive, are (1) from solar neutrino data [104–113]: θ12, ∆m 2 21, and θ13; (2) from neutrino mode in LBL experiments K2K [114], MINOS [115,116], T2K [117,118], and NOνA [119, 120]: θ23, ∆m 2 31, and θ13; (3) from KamLAND reactor antineutrino d”
• Neutrino Oscillations and Non-standard Interactions (2017, background): “471 × 10(20) POT in the antineutrino mode, results in the best determination of the atmospheric oscillation parameters to date [91]”
• Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of nu(e) interactions at the far detector (2017, unknown): “[12], but an additional SK sample is included in the oscillation analysis.”