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

(The Super-Kamiokande Collaboration)

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7 Citations (Scopus)

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 Δ⁢𝑚23⁢2, sin2⁡𝜃2⁢3, sin2⁡𝜃1⁢3, 𝛿CP, and the preference for the neutrino mass ordering are presented with atmospheric neutrino data alone, and with constraints on sin2⁡𝜃1⁢3 from reactor neutrino experiments. Our analysis including constraints on sin2⁡𝜃1⁢3 favors the normal mass ordering at the 92.3% level.

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

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