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DUNE as the Next-Generation Solar Neutrino Experiment
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abstract
We show that the Deep Underground Neutrino Experiment (DUNE), with significant but feasible new efforts, has the potential to deliver world-leading results in solar neutrinos. With a 100 kton-year exposure, DUNE could detect $\gtrsim 10^5$ signal events above 5 MeV electron energy. Separate precision measurements of neutrino-mixing parameters and the $^8$B flux could be made using two detection channels ($\nu_e + \, ^{40}$Ar and $\nu_{e,\mu,\tau} + e^-$) and the day-night effect ($> 10 \sigma$). New particle physics may be revealed through the comparison of solar neutrinos (with matter effects) and reactor neutrinos (without), which is discrepant by $\sim 2 \sigma$ (and could become $5.6 \sigma$). New astrophysics may be revealed through the most precise measurement of the $^8$B flux (to 2.5\%) and the first detection of the {\it hep} flux (to 11\%). {\it DUNE is required:} No other experiment, even proposed, has been shown capable of fully realizing these discovery opportunities.
Forward citations
Cited by 4 Pith papers
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Opportunities and challenges to study solar neutrinos with a Q-Pix pixel readout
Simulations show a Q-Pix liquid argon detector could, in a low-background underground scenario, see boron-8 and hep solar neutrinos above about 5 MeV if poorly understood gamma and alpha-capture backgrounds are controlled.
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Bounds and detection of MeV-scale dark matter annihilation to neutrinos
Relic dark matter annihilation into neutrinos after neutrino decoupling adds a nonthermal contribution to the effective number of neutrino species, which can exclude large annihilation cross sections for MeV-scale dar...
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Heavy Neutral Lepton Decay Searches using Solar Neutrinos
A new differential decay width including neutral and charged current interference is used to show that future detectors could probe HNL mixing angles over two orders of magnitude below current bounds.
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A New Concept for Kilotonne Scale Liquid Argon Time Projection Chambers
A concept for a kilotonne-scale modular LArTPC using pixel readout, resistive field shells, and optical segmentation, proposed for a DUNE far detector module.
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