Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE

One of the primary objectives of the Deep Underground Neutrino Experiment (DUNE) is to discover the leptonic CP violation and to identify its source. In this context, we study the impact of non-standard neutrino interactions (NSIs) on observing the CP violation signal at DUNE. We explore the impact...

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Main Authors: K.N. Deepthi, Srubabati Goswami, Newton Nath
Format: Article
Language:English
Published: Elsevier 2018-11-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321318302517
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author K.N. Deepthi
Srubabati Goswami
Newton Nath
author_facet K.N. Deepthi
Srubabati Goswami
Newton Nath
author_sort K.N. Deepthi
collection DOAJ
description One of the primary objectives of the Deep Underground Neutrino Experiment (DUNE) is to discover the leptonic CP violation and to identify its source. In this context, we study the impact of non-standard neutrino interactions (NSIs) on observing the CP violation signal at DUNE. We explore the impact of various parameter degeneracies introduced by non-zero NSI and identify which of these can influence the CP violation sensitivity and CP precision of DUNE, by considering NSI both in data and in theory. In particular, we study how the CP sensitivity of DUNE is affected because of the intrinsic hierarchy degeneracy which occurs when the diagonal NSI parameter ϵee=−1 and δCP=±90°.
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spelling doaj.art-9e0e22c520b9411d9d30947c8fe6ae442022-12-21T19:00:46ZengElsevierNuclear Physics B0550-32132018-11-0193691105Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNEK.N. Deepthi0Srubabati Goswami1Newton Nath2Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, IndiaPhysical Research Laboratory, Navrangpura, Ahmedabad 380 009, IndiaInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; Corresponding author.One of the primary objectives of the Deep Underground Neutrino Experiment (DUNE) is to discover the leptonic CP violation and to identify its source. In this context, we study the impact of non-standard neutrino interactions (NSIs) on observing the CP violation signal at DUNE. We explore the impact of various parameter degeneracies introduced by non-zero NSI and identify which of these can influence the CP violation sensitivity and CP precision of DUNE, by considering NSI both in data and in theory. In particular, we study how the CP sensitivity of DUNE is affected because of the intrinsic hierarchy degeneracy which occurs when the diagonal NSI parameter ϵee=−1 and δCP=±90°.http://www.sciencedirect.com/science/article/pii/S0550321318302517
spellingShingle K.N. Deepthi
Srubabati Goswami
Newton Nath
Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
Nuclear Physics B
title Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
title_full Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
title_fullStr Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
title_full_unstemmed Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
title_short Challenges posed by non-standard neutrino interactions in the determination of δCP at DUNE
title_sort challenges posed by non standard neutrino interactions in the determination of δcp at dune
url http://www.sciencedirect.com/science/article/pii/S0550321318302517
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AT newtonnath challengesposedbynonstandardneutrinointeractionsinthedeterminationofdcpatdune