Non-standard interactions from the future neutrino solar sector

Abstract

The next-generation neutrino experiment JUNO will determine the solar oscillation parameters - ${\sin }^2{\theta }_{12}$ and $\Delta m_{21}^2$ - with great accuracy, in addition to measuring ${\sin }^2{\theta }_{13}$, $\Delta m_{31}^2$, and the mass ordering. In parallel, the continued study of solar neutrinos at Hyper-Kamiokande will provide complementary measurements in the solar sector. In this paper, we address the expected sensitivity to non-universal and flavour-changing non-standard interactions (NSI) with $d$-type quarks from the combination of these two future neutrino experiments. We also show the robustness of their measurements of the solar parameters ${\sin }^2{\theta }_{12}$ and $\Delta m_{21}^2$ in the presence of NSI. We study the impact of the exact experimental configuration of the Hyper-Kamiokande detector, and conclude it is of little relevance in this scenario. Finally, we find that the LMA-D solution is expected to be present if no additional input from non-oscillation experiments is considered.

22 pages, 10 figures, 2 tables. Matches published version

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• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• New features in the simulation of neutrino oscillation experiments with GLoBES 3.0
• Status of non-standard neutrino interactions
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Cited by in corpus (3)

• A Direct Detection View of the Neutrino NSI Landscape
• Solar neutrino physics
• Here Comes the Sun: Solar Parameters in Long-Baseline Accelerator Neutrino Oscillations