On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond

Abstract We consider the ν μ → ν τ appearance channel in the future Deep Underground Neutrino Experiment (DUNE) which offers a good statistics of the ν τ sample. In order to measure its impact on constraining the oscillation parameters, we consider several assumptions on the efficiency for ν τ charg...

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Main Authors: A. Ghoshal, A. Giarnetti, D. Meloni
Format: Article
Language:English
Published: SpringerOpen 2019-12-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP12(2019)126
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author A. Ghoshal
A. Giarnetti
D. Meloni
author_facet A. Ghoshal
A. Giarnetti
D. Meloni
author_sort A. Ghoshal
collection DOAJ
description Abstract We consider the ν μ → ν τ appearance channel in the future Deep Underground Neutrino Experiment (DUNE) which offers a good statistics of the ν τ sample. In order to measure its impact on constraining the oscillation parameters, we consider several assumptions on the efficiency for ν τ charged-current signal events (with subsequent τ → e decay) and the related backgrounds and study the effects of various systematic uncertainties. Two different neutrino fluxes have been considered, namely a CP-violation optimized flux and a ν τ optimized flux. Our results show that the addition of the ν μ → ν τ appearance channel does not reduce the current uncertainties on the standard 3-ν oscillation parameters while it can improve in a significant way the sensitivity to the Non-Standard Interaction parameter |∈ μτ | and to the new mixing angle θ 34 of a sterile neutrino model of the 3 + 1 type.
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spelling doaj.art-61c67b04c19f45f08a1a1adb261297a02022-12-21T23:30:23ZengSpringerOpenJournal of High Energy Physics1029-84792019-12-0120191212710.1007/JHEP12(2019)126On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyondA. Ghoshal0A. Giarnetti1D. Meloni2Dipartimento di Matematica e Fisica, Università di Roma TreDipartimento di Matematica e Fisica, Università di Roma TreDipartimento di Matematica e Fisica, Università di Roma TreAbstract We consider the ν μ → ν τ appearance channel in the future Deep Underground Neutrino Experiment (DUNE) which offers a good statistics of the ν τ sample. In order to measure its impact on constraining the oscillation parameters, we consider several assumptions on the efficiency for ν τ charged-current signal events (with subsequent τ → e decay) and the related backgrounds and study the effects of various systematic uncertainties. Two different neutrino fluxes have been considered, namely a CP-violation optimized flux and a ν τ optimized flux. Our results show that the addition of the ν μ → ν τ appearance channel does not reduce the current uncertainties on the standard 3-ν oscillation parameters while it can improve in a significant way the sensitivity to the Non-Standard Interaction parameter |∈ μτ | and to the new mixing angle θ 34 of a sterile neutrino model of the 3 + 1 type.https://doi.org/10.1007/JHEP12(2019)126Neutrino PhysicsBeyond Standard Model
spellingShingle A. Ghoshal
A. Giarnetti
D. Meloni
On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
Journal of High Energy Physics
Neutrino Physics
Beyond Standard Model
title On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
title_full On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
title_fullStr On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
title_full_unstemmed On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
title_short On the role of the ν τ appearance in DUNE in constraining standard neutrino physics and beyond
title_sort on the role of the ν τ appearance in dune in constraining standard neutrino physics and beyond
topic Neutrino Physics
Beyond Standard Model
url https://doi.org/10.1007/JHEP12(2019)126
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AT agiarnetti ontheroleofthentappearanceinduneinconstrainingstandardneutrinophysicsandbeyond
AT dmeloni ontheroleofthentappearanceinduneinconstrainingstandardneutrinophysicsandbeyond