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Title

Search for CP Violation in Neutrino and Antineutrino Oscillations by the T2K Experiment with 2.2×1021 Protons on Target

CollaborationWith : Blondel, Alain / Bravar, Alessandro / Haegel, Leïla / Maret, Lucie / Sanchez Nieto, Federico / Scantamburlo, Enrico / Sgalaberna, Davide
Published in Physical Review Letters. 2018, vol. 121, no. 17
Collection Open Access - SCOAP3
Abstract The T2K experiment measures muon neutrino disappearance and electron neutrino appearance in accelerator-produced neutrino and antineutrino beams. With an exposure of 14.7(7.6)×1020 protons on target in the neutrino (antineutrino) mode, 89 νe candidates and seven anti-νe candidates are observed, while 67.5 and 9.0 are expected for δCP=0 and normal mass ordering. The obtained 2σ confidence interval for the CP-violating phase, δCP, does not include the CP-conserving cases (δCP=0, π). The best-fit values of other parameters are sin2θ23=0.526−0.036+0.032 and Δm322=2.463−0.070+0.071×10−3 eV2/c4.
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arXiv: 1807.07891
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T2K COLLABORATION. Search for CP Violation in Neutrino and Antineutrino Oscillations by the T2K Experiment with 2.2×1021 Protons on Target. In: Physical Review Letters, 2018, vol. 121, n° 17. https://archive-ouverte.unige.ch/unige:110363

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Deposited on : 2018-11-05

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