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arXiv · 2606.13469

Simulations of 3-Dimensional Recoil Response to Coherent Elastic Neutrino-Nucleus Scattering Events in Directional Direct Dark Matter Detectors

Kwang-Chang Lai·Chung-Lin Shan
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Abstract

Following our earlier work on studying 3-dimensional nuclear recoil response to Galactic Weakly Interacting Massive Particles (WIMPs) in directional direct Dark Matter detectors, in this paper, we simulate 3-D coherent elastic neutrino-nucleus scattering (CEvNS) events induced by Solar B-8 neutrinos. Our numerical results show that, in contrast to the approximately fixed patterns of the WIMP-induced signals, the characteristic ring-like angular distributions of the nuclear recoil flux/energy of CEvNS events show clearly annual variations along the trajectories of the moving direction of incident Solar neutrinos in different celestial coordinate systems without experimentally distinguishable target dependence.

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Kwang-Chang Lai, Chung-Lin Shan. 2026-06-11. Simulations of 3-Dimensional Recoil Response to Coherent Elastic Neutrino-Nucleus Scattering Events in Directional Direct Dark Matter Detectors. https://arxiv.org/abs/2606.13469

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