Sensitivity of DUNE to long-baseline neutrino oscillation physics

TL;DR

This paper evaluates DUNE's potential to precisely measure key neutrino oscillation parameters, including mass hierarchy, mixing angles, and CP violation, using its long-baseline liquid argon detectors.

Contribution

It provides a detailed analysis of DUNE's sensitivity to neutrino oscillation parameters, highlighting its capability to resolve current uncertainties in neutrino physics.

Findings

DUNE can determine neutrino mass ordering with high confidence.

The experiment is sensitive to the octant of θ23.

DUNE can measure the CP violation phase with significant precision.

Abstract

DUNE is an international project, currently in its design phase, for neutrino physics and proton-decay searches. It will consist of two detectors exposed to a megawatt-scale muon neutrino beam that will be produced at Fermilab (Illinois, USA). One detector will record particle interactions near the source of the beam, while a second, much larger, detector comprising four 10-kilotonne liquid argon TPCs will be installed at a depth of 1.5 km at SURF (South Dakota, USA), about 1300 kilometres away of the neutrino source. Among the primary scientific goals of DUNE is the precision measurement of the parameters that govern neutrino mixing, including those still unknown: the octant in which the $\theta_{23}$ mixing angle lies, the neutrino mass ordering and the value of the CP violation phase. This paper discusses the sensitivity of the DUNE experiment to these parameters.