@Article{T2KCollaborationAbe_etal2020,
author="T2K Collaboration (Abe, K. et al
and Antonova, M.
and Cervera-Villanueva, A.
and Fernandez, P.
and Izmaylov, A.
and Novella, P.",
title="Search for Electron Antineutrino Appearance in a Long-Baseline Muon Antineutrino Beam",
journal="Physical Review Letters",
year="2020",
publisher="Amer Physical Soc",
volume="124",
number="16",
pages="161802--8pp",
abstract="Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40s and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and antineutrino appearance also finds no discrepancy between data and PMNS predictions.",
optnote="WOS:000527135200004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4379), last updated on Tue, 05 May 2020 15:12:58 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.124.161802",
opturl="https://arxiv.org/abs/1911.07283",
opturl="https://doi.org/10.1103/PhysRevLett.124.161802",
language="English"
}