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

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 Δm322, sin2θ23, sin2θ13 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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevD.97.072001

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Publisher:
American Physical Society
Journal:
Physical Review D More from this journal
Volume:
97
Issue:
7
Article number:
072001
Publication date:
2018-04-03
DOI:
EISSN:
2470-0029
ISSN:
2470-0010


Keywords:
Pubs id:
pubs:844099
UUID:
uuid:9061ed4d-440c-46e2-87a7-aa88da6833be
Local pid:
pubs:844099
Source identifiers:
844099
Deposit date:
2018-06-12

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