Solar neutrinos with CE$\nu$NS and flavor-dependent radiative corrections

Abstract

We examine solar neutrinos in dark matter detectors including the effects of flavor-dependent radiative corrections to the CE$\nu$NS cross section. Working within a full three-flavor framework, and including matter effects within the Sun and Earth, detectors with thresholds $\lesssim 1$ keV and exposures of $\sim 100$ ton-year could identify contributions to the cross section beyond tree level. The differences between the cross sections for the flavors, combined with the difference in fluxes, would provide a new and unique method to study the muon and tau components of the solar neutrino flux. Flavor-dependent corrections induce a small day-night asymmetry of $<|3\times 10^{-4}|$ in the event rate, which if ultimately accessible would provide a novel probe of flavor oscillations.

20 pages, 17 figures

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• Measurement of the Coherent Elastic Neutrino-Nucleus Scattering Cross Section on CsI by COHERENT
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Cited by in corpus (8)

• Light vector mediators at direct detection experiments
• The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Probing active-sterile neutrino transition magnetic moment on coherent elastic solar neutrino-nucleus scattering
• Looping Around Neutrino Charge Radius at Ultra-Near Reactor Experiments
• CYG$\nu$S: Detecting solar neutrinos with directional gas time projection chambers
• Testing the dark side of neutrino oscillations with the solar neutrino fog at Dark Matter experiments
• New light mediators and the neutrino fog: Implications from XENONnT nuclear recoil data
• Searching for beyond-Standard-Model solar neutrino interactions using directional detectors