Meighen-Berger Stephan A, Newstead Jayden L, Beacom John F, Bell Nicole F, Dolan Matthew J
The University of Melbourne, School of Physics, Victoria 3010, Australia.
Ohio State University, Center for Cosmology and AstroParticle Physics (CCAPP), Columbus, Ohio 43210, USA.
Phys Rev Lett. 2025 Jul 2;135(1):011803. doi: 10.1103/htfm-tbdq.
We show that the Deep Underground Neutrino Experiment (DUNE) has the potential to make a precise measurement of the total active flux of ^{8}B solar neutrinos via neutral-current (NC) interactions with argon. This would complement proposed precise measurements of solar-neutrino fluxes in DUNE via charged-current (CC) interactions with argon and mixed CC/NC interactions with electrons. Together, these would enable DUNE to make a Sudbury Neutrino Observatory (SNO)-like comparison of rates and thus to make the most precise measurements of sin^{2}θ_{12} and Δm_{21}^{2} using solar neutrinos. Realizing this potential requires dedicated but realistic efforts to improve DUNE's low-energy capabilities and separately to reduce neutrino-argon cross-section uncertainties. Comparison of mixing-parameter results obtained using solar neutrinos in DUNE and reactor antineutrinos in the Jiangmen Underground Neutrino Observatory (JUNO) would allow for unprecedented tests of new physics.
我们表明，深层地下中微子实验（DUNE）有潜力通过与氩的中性流（NC）相互作用对(^{8}B)太阳中微子的总活性通量进行精确测量。这将补充计划在DUNE中通过与氩的带电流（CC）相互作用以及与电子的混合CC/NC相互作用对太阳中微子通量进行的精确测量。这些测量共同作用，将使DUNE能够进行类似萨德伯里中微子观测站（SNO）的速率比较，从而利用太阳中微子对(\sin^{2}\theta_{12})和(\Delta m_{21}^{2})进行最精确的测量。要实现这一潜力，需要付出专门且切实可行的努力来提高DUNE的低能能力，并单独降低中微子 - 氩截面的不确定性。比较在DUNE中使用太阳中微子和在江门地下中微子观测站（JUNO）中使用反应堆反中微子获得的混合参数结果，将允许对新物理进行前所未有的测试。
