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  • 2405.12488v1

    Submitted manuscript, 446 KB, PDF document

  • PhysRevLett.134.011801

    Final published version, 511 KB, PDF document

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First joint oscillation analysis of Super-Kamiokande atmospheric and T2K accelerator neutrino data

Research output: Working paperPreprint

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  • T2K Collaboration
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Publication date2/01/2025
<mark>Original language</mark>English

Abstract

The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. Using 3244.4 days of atmospheric data and a beam exposure of $19.7(16.3) \times 10^{20}$ protons on target in (anti)neutrino mode, the analysis finds a 1.9$\sigma$ exclusion of CP-conservation (defined as $J_{CP}=0$) and a preference for the normal mass ordering.

Bibliographic note

10 pages, 3 figures