IceCube DeepCore's sensitivity to Non-Standard neutrino Interactions in the Earth

TL;DR

This paper evaluates IceCube DeepCore's ability to detect non-standard neutrino interactions in Earth, which could explain discrepancies in neutrino oscillation measurements and reveal new physics beyond the Standard Model.

Contribution

It provides a model-independent analysis of IceCube DeepCore's sensitivity to NSI and assesses its potential to clarify the T2K-NOvA $ ext{CP}$ tension.

Findings

IceCube DeepCore can constrain NSI parameters effectively.

Potential to distinguish NSI effects from standard oscillations.

Insights into the origin of T2K-NOvA $ ext{CP}$ tension.

Abstract

Neutrino oscillations continue to provide one of the most promising avenues for uncovering physics beyond the Standard Model. In particular, beyond-standard-model neutrino matter interactions may perturb neutrino oscillations in matter, leading to an observable signal in long baseline oscillation experiments. Moreover, such interactions can be a possible explanation of the rising tension between T2K and NOvA's $\delta_{\text{CP}}$ measurements. We examine IceCube DeepCore's sensitivity to these Non-Standard Interactions (NSI) by employing a model-independent NSI parameterization, and examine IceCube DeepCore's ability to comment on NSI being the cause of the T2K-NOvA $\delta_{\text{CP}}$ tension.