2020年4月22日
Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam
Phys.Rev.Lett.
- 巻
- 124
- 号
- 16
- 開始ページ
- 161802
- 終了ページ
- 161802
- 記述言語
- 掲載種別
- 機関テクニカルレポート,技術報告書,プレプリント等
- DOI
- 10.1103/PhysRevLett.124.161802
Electron antineutrino appearance is measured by the T2K experiment in an<br />
accelerator-produced antineutrino beam, using additional neutrino beam<br />
operation to constrain parameters of the PMNS mixing matrix. T2K observes 15<br />
candidate electron antineutrino events with a background expectation of 9.3<br />
events. Including information from the kinematic distribution of observed<br />
events, the hypothesis of no electron antineutrino appearance is disfavored<br />
with a significance of 2.40{\sigma} and no discrepancy between data and PMNS<br />
predictions is found. A complementary analysis that introduces an additional<br />
free parameter which allows non-PMNS values of electron neutrino and<br />
antineutrino appearance also finds no discrepancy between data and PMNS<br />
predictions.
accelerator-produced antineutrino beam, using additional neutrino beam<br />
operation to constrain parameters of the PMNS mixing matrix. T2K observes 15<br />
candidate electron antineutrino events with a background expectation of 9.3<br />
events. Including information from the kinematic distribution of observed<br />
events, the hypothesis of no electron antineutrino appearance is disfavored<br />
with a significance of 2.40{\sigma} and no discrepancy between data and PMNS<br />
predictions is found. A complementary analysis that introduces an additional<br />
free parameter which allows non-PMNS values of electron neutrino and<br />
antineutrino appearance also finds no discrepancy between data and PMNS<br />
predictions.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevLett.124.161802
- ORCIDのPut Code : 87597084
- arXiv ID : arXiv:1911.07283