Discernible NSI Effects in Long-Baseline Neutrino Experiments

Neutrino oscillation in the matter could get affected by the sub-dominant, yet unknown, non-standard interactions. The upcoming long-baseline (LBL) neutrino experiments will be sensitive to these effects and can provide information on the unknown oscillation parameter values. In this article, we stu...

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Bibliographic Details
Published inarXiv.org
Main Authors Brahma, Barnali, Giri, Anjan
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 19.02.2023
Subjects
Experiments
Neutrinos
Parameters
Particle physics
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Summary:Neutrino oscillation in the matter could get affected by the sub-dominant, yet unknown, non-standard interactions. The upcoming long-baseline (LBL) neutrino experiments will be sensitive to these effects and can provide information on the unknown oscillation parameter values. In this article, we study the parameter degeneracies that can occur in DUNE, T2HK experiments, and a combination of both due to nonstandard interactions (NSI), arising simultaneously, from two different off-diagonal sectors, i.e., \(e-\mu\) and \(e-\tau\). We derive constraints on both the NSI sectors using the combined datasets of NO\(\nu\)A and T2K. Our analysis reveals a significant impact that dual NSIs may have on the sensitivity of atmospheric mixing angle \(\theta_{23}\) in the normal ordering (NO) case. Furthermore, when non-standard interaction from the \(e-\mu\) and \(e-\tau\) sectors are included, we see significant changes in the probabilities for DUNE, T2HK, and as well as a combined analysis involving both. Moreover, the CP sensitivity gets affected significantly due to the presence of dual NSIs, and, in addition, the CP asymmetry also exhibits an appreciable difference.
ISSN:2331-8422