Search for electron antineutrino appearance in a long-baseline muon antineutrino beam
File(s)PhysRevLett.124.161802.pdf (290.48 KB)
Published version
Author(s)
Type
Journal Article
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
2.40
σ
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.
2.40
σ
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.
Date Issued
2020-04-21
Date Acceptance
2020-04-01
Citation
Physical Review Letters, 2020, 124 (16), pp.161802-1-161802-8
ISSN
0031-9007
Publisher
American Physical Society
Start Page
161802-1
End Page
161802-8
Journal / Book Title
Physical Review Letters
Volume
124
Issue
16
Copyright Statement
© 2020 The Author(s). Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Sponsor
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000527135200004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/H000992/1
ST/S001174/4
Subjects
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
Publication Status
Published
Article Number
ARTN 161802
Date Publish Online
2020-04-21