New Spallation Background Rejection Techniques to Greatly Improve the Solar Neutrino Sensitivity of JUNO

arXiv:2510.12873 · hep-ph, astro-ph.HE, hep-ex, nucl-ex, nucl-th, physics.ins-det · Submitted 2026-08-19 · Read on arXiv

Obada Nairat, John F. Beacom, Shirley Weishi Li

hep-ph, astro-ph.HE, hep-ex, nucl-ex, nucl-th, physics.ins-det

Submitted: 2026-08-19

Updated: 2026-08-20

Comments: Main text is 15 pages, with 9 figures. Minor changes to match the published version

Journal ref: Phys. Rev. D 114, 043047 (2026)

DOI: 10.1103/zpyz-7vsq

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 4× in this paper · explained in 1 episode
• Jiangmen Underground Neutrino Observatory — 3× in this paper
• Deep Underground Neutrino Experiment — 2× in this paper
• Accuracy — 1× in this paper · explained in 1 episode
• Calibration — 1× in this paper · explained in 7 episodes
• Core — 1× in this paper · explained in 2 episodes
• Super-K and the Sudbury Neutrino Observatory — 1× in this paper
• alpha — 1× in this paper · explained in 1 episode

Sources

• Neutrino Physics with JUNO
• Sub-percent Precision Measurement of Neutrino Oscillation Parameters with JUNO
• Complementarity Between Hyperkamiokande and DUNE in Determining Neutrino Oscillation Parameters
• Hyper-Kamiokande Design Report
• Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume I: Introduction to DUNE
• Long-baseline neutrino oscillation physics potential of the DUNE experiment
• Calibration of the Super-Kamiokande Detector
• DUNE as the Next-Generation Solar Neutrino Experiment
• Feasibility and physics potential of detecting $^8$B solar neutrinos at JUNO
• Model Independent Approach of the JUNO $^8$B Solar Neutrino Program
• JUNO sensitivity to $^7$Be, $pep$, and CNO solar neutrinos
• SoLAr: Solar Neutrinos in Liquid Argon
• Enhancing DUNE's solar neutrino capabilities with neutral-current detection
• Solar neutrino measurements in Super-Kamiokande-I
• Combined Analysis of all Three Phases of Solar Neutrino Data from the Sudbury Neutrino Observatory
• Search for $hep$ solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory
• Solar neutrino measurements using the full data period of Super-Kamiokande-IV
• Neutrino Oscillations in the Three Flavor Paradigm
• A $\nu$ look at the Sun: Probing the conditions of the solar core using $^8$B neutrinos
• GADZOOKS! Antineutrino Spectroscopy with Large Water Cerenkov Detectors

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