Improved constraints on neutrino mixing from the T2K experiment with 3.13×1021 protons on target
Authors:
- Arkadiusz Bubak,
- Jacek Holeczek,
- Jan Emil Kisiel
Abstract
The T2K experiment reports updated measurements of neutrino and antineutrino oscillations using both appearance and disappearance channels. This result comes from an exposure of 14.9(16.4)×1020 protons on target in neutrino (antineutrino) mode. Significant improvements have been made to the neutrino interaction model and far detector reconstruction. An extensive set of simulated data studies have also been performed to quantify the effect interaction model uncertainties have on the T2K oscillation parameter sensitivity. T2K performs multiple oscillation analyses that present both frequentist and Bayesian intervals for the Pontecorvo-Maki-Nakagawa-Sakata parameters. For fits including a constraint on sin2θ13 from reactor data and assuming normal mass ordering T2K measures sin2θ23=0.53+0.03−0.04 and Δm232=(2.45±0.07)×10−3 eV2 c−4. The Bayesian analyses show a weak preference for normal mass ordering (89% posterior probability) and the upper sin2θ23 octant (80% posterior probability), with a uniform prior probability assumed in both cases. The T2K data exclude CP conservation in neutrino oscillations at the 2σ level.
- Record ID
- USL79abadae16604a2281947f33536e2ac5
- Author
- Total number of authors
- 309
- Journal series
- Physical Review D, ISSN 2470-0010, e-ISSN 2470-0029, [1538-4500, 1550-7998]
- Issue year
- 2021
- Vol
- 103
- No
- 11
- Pages
- 1-59
- Publication size in sheets
- 2.90
- Article number
- 112008
- Keywords in English
- neutrino interactions; neutrino oscillations; neutrino
- ASJC Classification
- DOI
- DOI:10.1103/PhysRevD.103.112008 Opening in a new tab
- Handle.net URL
- hdl.handle.net/20.500.12128/20418 Opening in a new tab
- Language
- eng (en) English
- License
- File
-
- File: 1
- Improved constraints on neutrino mixing from the T2K experiment with 3.13×1021 protons on target, File Bubak_Kisiel_Improwed_constrains_on_neutrino.pdf / 6 MB
- Bubak_Kisiel_Improwed_constrains_on_neutrino.pdf
- publication date: 09-01-2024
- Improved constraints on neutrino mixing from the T2K experiment with 3.13×1021 protons on target, File Bubak_Kisiel_Improwed_constrains_on_neutrino.pdf / 6 MB
-
- Score (nominal)
- 140
- Score source
- journalList
- Score
- = 140.0, 09-01-2024, ArticleFromJournal
- Publication indicators
- Uniform Resource Identifier
- https://opus.us.edu.pl/info/article/USL79abadae16604a2281947f33536e2ac5/
- URN
urn:uni-kat-prod:USL79abadae16604a2281947f33536e2ac5
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.