Exploring Non-Isotropic Lorentz Invariance Violation Through Sidereal Effect at DUNE

TL;DR

This paper investigates how the DUNE neutrino experiment can detect non-isotropic Lorentz Invariance Violation through sidereal effects, providing new constraints and improving sensitivity over previous limits.

Contribution

It offers a comprehensive analysis of non-isotropic LIV parameters with sidereal dependence, demonstrating DUNE's potential to surpass existing constraints.

Findings

DUNE can set more stringent LIV parameter limits.

Enhanced sensitivity for certain LIV parameters.

Potential to surpass all previous LIV constraints.

Abstract

Lorentz Invariance Violation (LIV) presents an intriguing opportunity to investigate fundamental symmetries, with neutrinos serving as a particularly effective probe for this phenomenon. Long-baseline neutrino experiments, such as the Deep Underground Neutrino Experiment (DUNE), excel at exploring non-isotropic LIV, especially through the observation of sidereal effects. This study comprehensively examines the full parameter space of non-isotropic, non-diagonal LIV parameters with sidereal dependence, focusing on two distinct flux scenarios: a low-energy flux and a tau-optimized flux. Through this analysis, we derive more stringent constraints on LIV parameters. Our results indicate that DUNE may achieve enhanced sensitivity for some LIV parameters, exceeding all previously established limits and marking a significant advancement in the investigation of LIV.