Exploring the intrinsic Lorentz-violating parameters at DUNE

TL;DR

This paper investigates how the DUNE experiment can detect or constrain Lorentz and CPT violation in neutrino physics, leveraging neutrinos' unique properties to amplify tiny effects.

Contribution

It introduces a framework for assessing DUNE's sensitivity to Lorentz-violating parameters, enabling straightforward extrapolation to various neutrino dispersion relation modifications.

Findings

DUNE can significantly improve bounds on Lorentz-violating parameters.

The framework allows for easy adaptation to different theoretical models.

Potential to detect Planck-scale suppressed effects in neutrino propagation.

Abstract

Neutrinos can push our search for new physics to a whole new level. What makes them so hard to be detected, what allows them to travel humongous distances without being stopped or deflected allows to amplify Planck suppressed effects (or effects of comparable size) to the level we can measure or bound in DUNE. In this work we analyse the sensitivity of DUNE to CPT and Lorentz--violating interactions in a framework that allows a straightforward extrapolation of the bounds obtained to any phenomenological modification of the dispersion relation of neutrinos.