Implications of the first evidence for coherent elastic scattering of reactor neutrinos

Abstract

The recent evidence for coherent elastic neutrino-nucleus scattering (CE$\nu$NS) in the NCC-1701 germanium detector using antineutrinos from the Dresden-II nuclear reactor is in good agreement with standard model expectations. However, we show that a $2\sigma$ improvement in the fit to the data can be achieved if the quenching factor is described by a modified Lindhard model. We also place constraints on the parameter space of a light vector or scalar mediator that couples to neutrinos and quarks, and on a neutrino magnetic moment. We demonstrate that the constraints are quite sensitive to the quenching factor at low recoil energies by comparing constraints for the standard Lindhard model with those by marginalizing over the two parameters of the modified Lindhard model.

5 pages, 3 figures, 1 table. Version to appear as a Letter in PRD

References in corpus (10)

• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• COHERENT constraints on nonstandard neutrino interactions
• Constraints on elastic neutrino nucleus scattering in the fully coherent regime from the CONUS experiment
• New limits on spin-independent and spin-dependent couplings of low-mass WIMP dark matter with a germanium detector at a threshold of 220 eV
• Impact of form factor uncertainties on interpretations of coherent elastic neutrino-nucleus scattering data
• Germanium response to sub-keV nuclear recoils: a multipronged experimental characterization
• Recent probes of standard and non-standard neutrino physics with nuclei
• First results from a search for coherent elastic neutrino-nucleus scattering (CE$\nu$NS) at a reactor site
• Atomic limits in the search for galactic dark matter
• Coherent neutrino scattering and the Migdal effect on the quenching factor

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• Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering
• Neutrino Constraints and the ATOMKI X17 Anomaly
• On the impact of the Migdal effect in reactor CE$\nu$NS experiments
• Constraints on New Physics with Light Mediators and Generalized Neutrino Interactions via Coherent Elastic Neutrino Nucleus Scattering
• How to measure the reactor neutrino flux below the inverse beta decay threshold with CE$\nu$NS
• Testing the dark side of neutrino oscillations with the solar neutrino fog at Dark Matter experiments
• Phenomenological study of a gauged $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Water-based Quantum Dots Liquid Scintillator for Particle Physics
• Phenomenological implications of the high-precision COHERENT germanium CE$\nu$NS data