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Atmospheric neutrino oscillation analysis with neutron tagging and an expanded fiducial volume in Super-Kamiokande I-V

  • (The Super-Kamiokande Collaboration)
  • Boston University
  • University of Tokyo
  • Long Beach VA and University of California
  • Universidad Autónoma de Madrid
  • British Columbia Institute of Technology
  • TRIUMF
  • High Energy Accelerator Research Organization (KEK)
  • California State University, Dominguez Hills
  • Chonnam National University
  • Duke University
  • Ip Paris
  • Gifu University
  • Gwangju Institute of Science and Technology
  • University of Glasgow
  • University of Hawaii
  • Institute for Basic Science (IBS)
  • ICISE
  • Imperial College London
  • Politecnico di Bari
  • University of Naples Federico II
  • University of Padova
  • University of Rome
  • Keio University
  • King's College London
  • Kobe University
  • Kyoto University
  • University of Liverpool
  • Miyagi University of Education
  • Nagoya University
  • National Centre for Nuclear Research (NCBJ)
  • Stony Brook University
  • York College/The City University of New York
  • Okayama University
  • Osaka Electro-Communication University
  • CCLRC Rutherford Appleton Laboratory
  • Seoul National University
  • The University of Sheffield
  • Shizuoka University of Welfare
  • Sungkyunkwan University
  • Tohoku University
  • Tokai University
  • Tokyo Institute of Technology
  • Tokyo University of Science
  • University of Victoria
  • Tsinghua University
  • University of Warsaw
  • University of Warwick
  • University of Winnipeg
  • Yokohama National University

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

We present a measurement of neutrino oscillation parameters with the Super-Kamiokande detector using atmospheric neutrinos from the complete pure-water SK I-V (April 1996-July 2020) dataset, including events from an expanded fiducial volume. The dataset corresponds to 6511.3 live days and an exposure of 484.2 kiloton-years. Measurements of the neutrino oscillation parameters Δm322, sin2θ23, sin2θ13, δCP, and the preference for the neutrino mass ordering are presented with atmospheric neutrino data alone, and with constraints on sin2θ13 from reactor neutrino experiments. Our analysis including constraints on sin2θ13 favors the normal mass ordering at the 92.3% level.

langue originaleAnglais
Numéro d'article072014
journalPhysical Review D
Volume109
Numéro de publication7
Les DOIs
étatPublié - 1 avr. 2024

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