Article ; Online: Search for Electron Antineutrino Appearance in a Long-Baseline Muon Antineutrino Beam.
2020 Volume 124, Issue 16, Page(s) 161802
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 ...
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 2.40σ 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. |
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Language | English | |||||
Publishing date | 2020-05-08 | |||||
Publishing country | United States | |||||
Document type | Journal Article | |||||
ZDB-ID | 208853-8 | |||||
ISSN | 1079-7114 ; 0031-9007 | |||||
ISSN (online) | 1079-7114 | |||||
ISSN | 0031-9007 | |||||
DOI | 10.1103/PhysRevLett.124.161802 | |||||
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Database | MEDical Literature Analysis and Retrieval System OnLINE |
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