Prospects for the Detection of Solar Neutrinos in DARWIN via Elastic Electron Scattering

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• Shayne Reichard (Karlsruhe Institute of Technology)
• Tuesday 09 February 2021, 16:00-17:00
• https://cern.zoom.us/j/61144924828?pwd=WDB6QmFCMEZiSEN5Q0k2aklWSjk5Zz09.

If you have a question about this talk, please contact William Fawcett.

The DARWIN observatory, a proposed experiment that would utilize tens of tonnes of liquid xenon to directly detect dark matter, will additionally exhibit sensitivity to solar neutrinos via elastic electron scattering. DARWIN will have the potential to measure the fluxes of five solar neutrino components: pp, 7Be, 13N, 15O and pep. A high-statistics observation of pp neutrinos would allow us to infer the values of the weak mixing angle and the electron-type neutrino survival probability, in the electron recoil energy region from a few keV up to 200 keV. An observation of pp and 7Be neutrinos would constrain the neutrino-inferred solar luminosity down to 0.2%. A combination of all flux measurements would distinguish between the high (GS98) and low metallicity (AGS09) solar models with 2.1-2.5σ significance, independent of external measurements from other experiments. Finally, the neutrino capture process on 131Xe may be observable with a target depleted of 136Xe

This talk is part of the Cavendish HEP Seminars series.

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