Neutrino, Electroweak and Nuclear Physics from COHERENT Elastic Neutrino-Nucleus Scattering with a New Quenching Factor

Abstract

We present an updated analysis of the coherent neutrino-nucleus elastic scattering data of the COHERENT experiment taking into account the new quenching factor published recently in Phys. Rev. D100, 033003 (2019). Through a fit of the COHERENT time-integrated energy spectrum, we show that the new quenching factor leads to a better determination of the average rms radius of the neutron distributions of ${}^{133}\text{Cs}$ and ${}^{127}\text{I}$, while in combination with the atomic parity violation (APV) experimental results it allows to determine a data-driven APV measurement of the low-energy weak mixing angle in very good agreement with the Standard Model prediction. We also find a $3.7\sigma$ evidence of the suppression of coherence due to the nuclear structure. Neutrino properties are better constrained by considering the COHERENT time-dependent spectral data, that allow us to improve the bounds on the neutrino charge radii and magnetic moments. We also present for the first time constraints on the neutrino charges obtained with coherent neutrino-nucleus elastic scattering data. In particular, we obtain the first laboratory constraints on the diagonal charge of ${\nu }_{\mu }$ and the ${\nu }_{\mu }$-${\nu }_{\tau }$ transition charge.

arXiv comment15 pages

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• A Statistical Analysis of the COHERENT Data and Applications to New Physics
• Determining the nuclear neutron distribution from Coherent Elastic neutrino-Nucleus Scattering: current results and future prospects
• COHERENT constraints after the COHERENT-2020 quenching factor measurement
• Particle Physics at the European Spallation Source
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• Momentum dependent flavor radiative corrections to the coherent elastic neutrino-nucleus scattering for the neutrino charge-radius determination
• Solar neutrino constraints on light mediators through coherent elastic neutrino-nucleus scattering
• Constraining Non-Standard Interactions with Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source
• Constraining Light Mediators via Detection of Coherent Elastic Solar Neutrino Nucleus Scattering
• Reactor antineutrinos CE$\nu$NS on germanium: CONUS+ and TEXONO as a new gateway to SM and BSM physics
• Recent Progress in Low Energy Neutrino Scattering Physics and Its Implications for the Standard and Beyond the Standard Model Physics
• Probing neutrino magnetic moments and the XENON1T excess with coherent elastic solar neutrino scattering
• Neutrino charge constraints from scattering to the weak gravity conjecture to neutron stars
• On the impact of the Migdal effect in reactor CE$\nu$NS experiments
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• Electroweak Constraints from the COHERENT Experiment
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• Light vector bosons and the weak mixing angle in the light of future germanium-based reactor CE$\nu$NS experiments
• Measuring Solar neutrino Fluxes in Direct Detection Experiments in the Presence of Light Mediators
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• Constraining Non-minimal Dark Sector Scenarios with the COHERENT Neutrino Scattering Data
• Standard Model Tested with Neutrinos
• Bounds on new physics with data of the Dresden-II reactor experiment and COHERENT
• Prospect of the NUCLEUS Experiment at Chooz for Coherent Elastic Neutrino-Nucleus Scattering and New Physics Searches