Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV

THE SUPER-KAMIOKANDE COLLABORATION

Research output: Contribution to journalArticlepeer-review

Abstract

An analysis of atmospheric neutrino data from all four run periods of Super-Kamiokande optimized for sensitivity to the neutrino mass hierarchy is presented. Confidence intervals for ∆m232, sin2 θ23, sin2 θ13 and δCP are presented for normal neutrino mass hierarchy and inverted neutrino mass hierarchy hypotheses, based on atmospheric neutrino data alone. Additional constraints from reactor data on θ13 and from published binned T2K data on muon neutrino disappearance and electron neutrino appearance are added to the atmospheric neutrino fit to give enhanced constraints on the above parameters. Over the range of parameters allowed at 90% confidence level, the normal mass hierarchy is favored by between 91.9% and 94.5% based on the combined Super-Kamiokande plus T2K result.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - 2017 Oct 25
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV'. Together they form a unique fingerprint.

Cite this