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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
  • The University of Tokyo
  • University of California at Irvine
  • Universidad Autónoma de Madrid
  • British Columbia Institute of Technology
  • TRIUMF

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

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.

Original languageEnglish
Article number072014
JournalPhysical Review D
Volume109
Issue number7
DOIs
StatePublished - Apr 1 2024

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