A Light Mediator Relating Neutrino Reactions
I. Alikhanov, E. A. Paschos
TL;DR
This paper explores a model extending the Standard Model with a light vector boson linked to a new $U(1)_R$ symmetry, affecting neutrino interactions and providing potential explanations for experimental anomalies.
Contribution
It introduces a minimal $U(1)_R$ extension with right-handed charges, analyzing its impact on neutrino scattering and comparing predictions with experimental data.
Findings
New contributions to antineutrino-electron scattering
Enhanced coherent scattering on nuclei
Compatibility with XENON1T results
Abstract
The extension of the standard model with a multiplicative factor is consistent with a light vector boson. In its simplest realization, only right-handed particles carry charges of the new group. In this model, there is a residual symmetry and one new coupling constant which correlates neutrino interactions. We compute new contributions to antineutrinoelectron scattering and coherent scattering on nuclei, and compare them with the XENON1T result.
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