Exploring new physics with DUNE high energy flux: the case of Lorentz Invariance Violation, Large Extra Dimensions and Long Range Forces

TL;DR

This paper investigates how the high-energy neutrino flux at DUNE can improve constraints on new physics scenarios like Lorentz Invariance Violation, Long Range Forces, and Large Extra Dimensions, surpassing current bounds.

Contribution

It demonstrates that HE-DUNE can set more stringent bounds on LIV, LRF, and LED parameters compared to existing experiments.

Findings

HE-DUNE can outperform standard DUNE in constraining LIV parameters.

HE-DUNE can set competitive bounds on the LED compactification radius.

The study shows potential for DUNE to explore new physics with high-energy neutrino flux.

Abstract

DUNE is a next-generation long-baseline neutrino oscillation experiment. It is expected to measure with an unprecedent precision the atmospheric oscillation parameters, including the CP-violating phase $\delta_{CP}$. Moreover, several studies have suggested that its unique features should allow DUNE to probe several new physics scenarios. In this work, we explore the performances of the DUNE far detector in constraining new physics if a high-energy neutrino flux is employed (HE-DUNE). We take into account three different scenarios: Lorentz Invariance Violation (LIV), Long Range Forces (LRF) and Large Extra Dimensions (LED). Our results show that HE-DUNE should be able to set bounds competitive to the current ones and, in particular, it can outperform the standard DUNE capabilities in constraining CPT-even LIV parameters and the compactification radius $R_{ED}$ of the LED model.