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Measurement of atmospheric tau neutrino appearance with IceCube DeepCore

Abstract:
We present a measurement of atmospheric tau neutrino appearance from oscillations with three years of data from the DeepCore subarray of the IceCube Neutrino Observatory. This analysis uses atmospheric neutrinos from the full sky with reconstructed energies between 5.6 and 56 GeV to search for a statistical excess of cascadelike neutrino events which are the signature of ντ interactions. For CC+NC (CC-only) interactions, we measure the tau neutrino normalization to be 0.73+0.30−0.24 (0.57+0.36−0.30) and exclude the absence of tau neutrino oscillations at a significance of 3.2σ (2.0σ) These results are consistent with, and of similar precision to, a confirmatory IceCube analysis also presented, as well as measurements performed by other experiments.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevD.99.032007

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Oxford college:
Linacre College
Role:
Author
ORCID:
0000-0002-3542-858X


Publisher:
American Physical Society
Journal:
Physical Review D More from this journal
Volume:
99
Issue:
3
Pages:
032007
Publication date:
2019-02-15
Acceptance date:
2019-01-31
DOI:
EISSN:
2470-0029
ISSN:
2470-0010


Pubs id:
pubs:967551
UUID:
uuid:5bf1adc7-d199-46d3-ac59-ec318f48695b
Local pid:
pubs:967551
Source identifiers:
967551
Deposit date:
2019-02-07

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