Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing

2025/03/20 by Xia Yu, Yu, Xin Yue, Zishen Guan +7
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Neutrino Physics Research #Particle physics theoretical and experimental studies

paper · doi:10.48550/arxiv.2503.16124

openalex publication_date 2025/03/20 · openalex created_date 2025/10/17 · openalex updated_date 2026/07/28

Abstract

In this paper, we investigate the effects of ν_τ and ν_τ detection at the DUNE far detector on the experiment's sensitivity to Non-Standard Interactions (NSI) in neutrino propagation. We show that the strongest observable NSI effect in the ν_τ and ν_τ appearance probabilities arises from ε_μτ. We have studied the hierarchy sensitivity, CP violation sensitivity and octant sensitivity of DUNE from ν_τ and ν_τ appearance channels in presence of NSI. We have also studied the detection sensitivity of NSI phases and the future constaints on NSI parameters from the tau neutrino appearance channels in DUNE. Additionally, we examine the role of ν_τ detection in constraining the unitary nature of the PMNS matrix. These studies emphasize the importance of incorporating ν_τ detection in long-baseline neutrino experiments such as DUNE.

Related

• Tau neutrino as a probe of charged non-standard interactions at DUNE
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• The Sensitivity of DUNE in Presence of Off-Diagonal Scalar NSI Parameters