Type: Article
Publication Date: 2022-02-02
Citations: 6
DOI: https://doi.org/10.1103/physrevd.105.035004
The next-generation neutrino experiment JUNO will determine the solar oscillation parameters---${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{12}$ and $\mathrm{\ensuremath{\Delta}}{m}_{21}^{2}$---with great accuracy, in addition to measuring ${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{13}$, $\mathrm{\ensuremath{\Delta}}{m}_{31}^{2}$, 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 nonuniversal and flavor-changing nonstandard 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 ${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{12}$ and $\mathrm{\ensuremath{\Delta}}{m}_{21}^{2}$ 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 nonoscillation experiments is considered.