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arxiv: 2501.10355 · v2 · pith:JIVYS6ZXnew · submitted 2025-01-17 · ✦ hep-ph

Exploring the Standard Model and Beyond from the Evidence of CEνNS with Reactor Antineutrinos in CONUS+

M. Alp\'izar-Venegas , L. J. Flores , Eduardo Peinado , E. V\'azquez-J\'auregui This is my paper
classification ✦ hep-ph
keywords antineutrinosreactorconusmodelneutrinoresultsstandardanalysis
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The observation of the Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$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 $\chi^2$-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$\nu$NS experiments in the study of fundamental neutrino properties and probing new physics.

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