Abstract
A search for the appearance of tau neutrinos from νμ↔ντ oscillations in the atmospheric neutrinos has been performed using 1489.2 days of atmospheric neutrino data from the Super-Kamiokande-I experiment. A best fit tau neutrino appearance signal of 138±48(stat)-32+15(syst) events is obtained with an expectation of 78±26(syst). The hypothesis of no tau neutrino appearance is disfavored by 2.4 sigma.
Original language | English (US) |
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Article number | 171801 |
Journal | Physical review letters |
Volume | 97 |
Issue number | 17 |
DOIs | |
State | Published - 2006 |
Bibliographical note
Funding Information:Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission. Research funding: This study was supported by grants from the Korean Health Technology R&D Project of the Ministry of Health & Welfare (A120030), as well as the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A13053986). Employment or leadership: None declared. Honorarium: None declared. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.