Light vector bosons and the weak mixing angle in the light of future germanium-based reactor CE\(\nu\)NS experiments

In this work, the sensitivity of future germanium-based reactor neutrino experiments to the weak mixing angle \(\sin^{2}\theta_{W}\), and to the presence of new light vector bosons is investigated. By taking into account key experimental features with their uncertainties and the application of a dat...

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Bibliographic Details
Published in:arXiv.org 2024-08
Main Authors: Lindner, Manfred, Rink, Thomas, Sen, Manibrata
Format: Article
Language:English
Subjects:
Bosons
Experiments
Germanium
Neutrinos
Online Access:Get full text
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Summary:In this work, the sensitivity of future germanium-based reactor neutrino experiments to the weak mixing angle \(\sin^{2}\theta_{W}\), and to the presence of new light vector bosons is investigated. By taking into account key experimental features with their uncertainties and the application of a data-driven and state-of-the-art reactor antineutrino spectrum, the impact of detection threshold and experimental exposure is assessed in detail for an experiment relying on germanium semiconductor detectors. With the established analysis framework, the precision on the Weinberg angle, and capability of probing the parameter space of a universally coupled mediator model, as well as a U(1)\(_{\rm B-L}\)-symmetric model are quantified. Our investigation finds the next-generation of germanium-based reactor neutrino experiments in good shape to determine the Weinberg angle \(\sin^{2}\theta_{W}\) with \(
ISSN:2331-8422
DOI:10.48550/arxiv.2401.13025