JUNO: A Next Generation Reactor Antineutrino Experiment

TL;DR

JUNO is a next-generation reactor neutrino experiment designed to determine the neutrino mass hierarchy independently of the CP phase, featuring a 20-kiloton detector with high energy resolution and addressing key technical challenges.

Contribution

This paper reviews JUNO's physics potential, preliminary design, and technical R&D efforts, advancing the capabilities of neutrino mass hierarchy determination.

Findings

Potential to determine neutrino mass hierarchy independently of CP phase

Design of a 20-kton detector with 3%/√E energy resolution

Discussion of technical challenges and R&D on PMTs and scintillators

Abstract

The mass hierarchy and the CP phase are the main focus of the next generation neutrino oscillation experiments. Jiangmen Underground Neutrino Observatory (JUNO), as a medium baseline reactor antineutrino experiment, can determine the neutrino mass hierarchy independent of the CP phase. The physics potential on the mass hierarchy, and other measurements are reviewed. The preliminary design options for a 20~kton detector with an energy resolution of $3\%/\sqrt{E_{vis}}$ are illustrated. The main technical challenges on the PMT and scintillator are discussed and the corresponding R\&D efforts are presented.