Exploring the Standard Model and Beyond from the Evidence of CE$ν$NS with Reactor Antineutrinos in CONUS+

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Main Authors: Alpízar-Venegas, M., Flores, L. J., Peinado, Eduardo, Vázquez-Jáuregui, E.
Format: Preprint
Published: 2025
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author Alpízar-Venegas, M.
Flores, L. J.
Peinado, Eduardo
Vázquez-Jáuregui, E.
author_facet Alpízar-Venegas, M.
Flores, L. J.
Peinado, Eduardo
Vázquez-Jáuregui, E.
contents The observation of the Coherent Elastic Neutrino-Nucleus Scattering (CE$ν$NS) process using reactor antineutrinos offers a unique opportunity to probe the Standard Model and explore Beyond the Standard Model scenarios. This study reports on the latest results from the CONUS+ experiment conducted at the Leibstadt nuclear power plant (KKL), Switzerland. The CONUS collaboration reports $395 \pm 106$ events detected from reactor antineutrinos with an exposure of 347 kg$\cdot$days, utilizing high-purity germanium detectors operated at sub-keV thresholds. A $χ^2$-based statistical analysis was performed on these results, incorporating systematic uncertainties. This analysis was used to extract the weak mixing angle, establish a limit on the neutrino magnetic moment, and impose constraints on neutrino non-standard interactions using reactor antineutrinos. The results confirm the potential of CE$ν$NS experiments in the study of fundamental neutrino properties and probing new physics.
format Preprint
id arxiv_https___arxiv_org_abs_2501_10355
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Exploring the Standard Model and Beyond from the Evidence of CE$ν$NS with Reactor Antineutrinos in CONUS+
Alpízar-Venegas, M.
Flores, L. J.
Peinado, Eduardo
Vázquez-Jáuregui, E.
High Energy Physics - Phenomenology
The observation of the Coherent Elastic Neutrino-Nucleus Scattering (CE$ν$NS) process using reactor antineutrinos offers a unique opportunity to probe the Standard Model and explore Beyond the Standard Model scenarios. This study reports on the latest results from the CONUS+ experiment conducted at the Leibstadt nuclear power plant (KKL), Switzerland. The CONUS collaboration reports $395 \pm 106$ events detected from reactor antineutrinos with an exposure of 347 kg$\cdot$days, utilizing high-purity germanium detectors operated at sub-keV thresholds. A $χ^2$-based statistical analysis was performed on these results, incorporating systematic uncertainties. This analysis was used to extract the weak mixing angle, establish a limit on the neutrino magnetic moment, and impose constraints on neutrino non-standard interactions using reactor antineutrinos. The results confirm the potential of CE$ν$NS experiments in the study of fundamental neutrino properties and probing new physics.
title Exploring the Standard Model and Beyond from the Evidence of CE$ν$NS with Reactor Antineutrinos in CONUS+
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2501.10355