Preprint

GSI-2025-00355

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Potential to Identify the Neutrino Mass Ordering with Reactor Antineutrinos in JUNO

Juno Collaboration (Corresponding author)GSI*

2024
arXiv

Please use a persistent id in citations: doi:10.48550/ARXIV.2405.18008

Report No.: arXiv:2405.18008

Abstract: The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment under construction in South China. This paper presents an updated estimate of JUNO's sensitivity to neutrino mass ordering using the reactor antineutrinos emitted from eight nuclear reactor cores in the Taishan and Yangjiang nuclear power plants. This measurement is planned by studying the fine interference pattern caused by quasi-vacuum oscillations in the oscillated antineutrino spectrum at a baseline of 52.5~km and is completely independent of the CP violating phase and neutrino mixing angle $θ_{23}$. The sensitivity is obtained through a joint analysis of JUNO and Taishan Antineutrino Observatory (TAO) detectors utilizing the best available knowledge to date about the location and overburden of the JUNO experimental site, local and global nuclear reactors, JUNO and TAO detector responses, expected event rates and spectra of signals and backgrounds, and systematic uncertainties of analysis inputs. We find that a 3$σ$ median sensitivity to reject the wrong mass ordering hypothesis can be reached with an exposure to approximately 6.5 years $\times$ 26.6 GW thermal power.

Keyword(s): High Energy Physics - Experiment (hep-ex) ; FOS: Physical sciences

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Contributing Institute(s):

1. FAIR Forschung NRW (FFN)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)

Experiment(s):

1. (JUNO Experiment at Jiangmen Underground Neutrino Observatory in China ( - ; other))

Appears in the scientific report 2024

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Abusleme, A. ; Adam, T. ; Ahmad, S. ; et al
Potential to identify neutrino mass ordering with reactor antineutrinos at JUNO*
Chinese physics / C 49(3), 033104 (2025) [10.1088/1674-1137/ad7f3e]2025   Files BibTeX | EndNote: XML, Text | RIS

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