A1 Journal article (refereed)
Model-independent Approach of the JUNO 8B Solar Neutrino Program (2024)

JUNO Collaboratorion. (2024). Model-independent Approach of the JUNO 8B Solar Neutrino Program. Astrophysical Journal, 965, Article 122. https://doi.org/10.3847/1538-4357/ad2bfd

JYU authors or editors

Publication details

All authors or editors: JUNO Collaboratorion

Journal or series: Astrophysical Journal

ISSN: 0004-637X

eISSN: 1538-4357

Publication year: 2024

Publication date: 01/04/2024

Volume: 965

Article number: 122

Publisher: IOP Publishing

Publication country: United States

Publication language: English

DOI: https://doi.org/10.3847/1538-4357/ad2bfd

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/94455

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2210.08437

Abstract

The physics potential of detecting 8 B solar neutrinos will be exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model-independent manner by using three distinct channels of the charged current (CC), neutral current (NC), and elastic scattering (ES) interactions. Due to the largest-ever mass of 13C nuclei in the liquid scintillator detectors and the expected low background level, 8 B solar neutrinos are observable in the CC and NC interactions on 13C for the first time. By virtue of optimized event selections and muon veto strategies, backgrounds from the accidental coincidence, muon-induced isotopes, and external backgrounds can be greatly suppressed. Excellent signal-to-background ratios can be achieved in the CC, NC, and ES channels to guarantee the observation of the 8 B solar neutrinos. From the sensitivity studies performed in this work, we show that JUNO, with 10 yr of data, can reach the 1σ precision levels of 5%, 8%, and 20% for the 8 B neutrino flux,sin q2 12, and Dm21 2 , respectively. Probing the details of both solar physics and neutrino physics would be unique and helpful. In addition, when combined with the Sudbury Neutrino Observatory measurement, the world's best precision of 3% is expected for the measurement of the 8 B neutrino flux.

Keywords: neutrinos; detectors; astrophysics; particle physics

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2024

Preliminary JUFO rating: 1