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Title: DUNE sensitivities to the mixing between sterile and tau neutrinos

Abstract

Light sterile neutrinos can be probed in a number of ways, including electroweak decays, cosmology and neutrino oscillation experiments. At long-baseline experiments, the neutral-current data is directly sensitive to the presence of light sterile neutrinos: once the active neutrinos have oscillated into a sterile state, a depletion in the neutral-current data sample is expected since they do not interact with the $Z$ boson. This channel offers a direct avenue to probe the mixing between a sterile neutrino and the tau neutrino, which remains largely unconstrained by current data. In this paper, we study the potential of the DUNE experiment to constrain the mixing angle which parametrizes this mixing, $$\theta_{34}$$, through the observation of neutral-current events at the far detector. We find that DUNE will be able to improve significantly over current constraints thanks to its large statistics and excellent discrimination between neutral- and charged-current events.

Authors:
; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1459591
Report Number(s):
FERMILAB-PUB-17-271-T; arXiv:1707.05348
Journal ID: ISSN 1029-8479; 1610448; TRN: US1901577
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Coloma, Pilar, Forero, David V., and Parke, Stephen J. DUNE sensitivities to the mixing between sterile and tau neutrinos. United States: N. p., 2018. Web. doi:10.1007/JHEP07(2018)079.
Coloma, Pilar, Forero, David V., & Parke, Stephen J. DUNE sensitivities to the mixing between sterile and tau neutrinos. United States. doi:10.1007/JHEP07(2018)079.
Coloma, Pilar, Forero, David V., and Parke, Stephen J. Sun . "DUNE sensitivities to the mixing between sterile and tau neutrinos". United States. doi:10.1007/JHEP07(2018)079. https://www.osti.gov/servlets/purl/1459591.
@article{osti_1459591,
title = {DUNE sensitivities to the mixing between sterile and tau neutrinos},
author = {Coloma, Pilar and Forero, David V. and Parke, Stephen J.},
abstractNote = {Light sterile neutrinos can be probed in a number of ways, including electroweak decays, cosmology and neutrino oscillation experiments. At long-baseline experiments, the neutral-current data is directly sensitive to the presence of light sterile neutrinos: once the active neutrinos have oscillated into a sterile state, a depletion in the neutral-current data sample is expected since they do not interact with the $Z$ boson. This channel offers a direct avenue to probe the mixing between a sterile neutrino and the tau neutrino, which remains largely unconstrained by current data. In this paper, we study the potential of the DUNE experiment to constrain the mixing angle which parametrizes this mixing, $\theta_{34}$, through the observation of neutral-current events at the far detector. We find that DUNE will be able to improve significantly over current constraints thanks to its large statistics and excellent discrimination between neutral- and charged-current events.},
doi = {10.1007/JHEP07(2018)079},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2018,
place = {United States},
year = {2018},
month = {7}
}

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