Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV
File(s)Atmospheric_neutrino_oscillation_analysis.pdf (2.25 MB)
Published version
Author(s)
Type
Journal Article
Abstract
A new event reconstruction algorithm based on a maximum likelihood method has been developed for Super-Kamiokande. Its improved kinematic and particle identification capabilities enable the analysis of atmospheric neutrino data in a detector volume 32% larger than previous analyses and increase the sensitivity to the neutrino mass hierarchy. Analysis of a 253.9 kton⋅year exposure of the Super-Kamiokande IV atmospheric neutrino data has yielded a weak preference for the normal hierarchy, disfavoring the inverted hierarchy at 74% assuming oscillations at the best fit of the analysis.
Date Issued
2019-05-01
Date Acceptance
2019-02-15
ISSN
2050-3911
Publisher
Oxford University Press
Journal / Book Title
Progress of Theoretical and Experimental Physics
Volume
2019
Issue
5
Copyright Statement
© 2019 The Author(s). Published by Oxford University Press on behalf of the Physical Society of Japan.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/),
which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Funded by SCOAP3.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/),
which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Funded by SCOAP3.
Sponsor
Science and Technology Facilities Council (STFC)
Grant Number
ST/M002691/1
Subjects
hep-ex
hep-ex
Publication Status
Published
OA Location
https://academic.oup.com/ptep/article-pdf/2019/5/053F01/28638877/ptz015.pdf
Date Publish Online
2019-05-14