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arXiv · 2609.08835

Hyperfine-driven polarization effects in elastic muon scattering by atomic nuclei

Ivan A. Moiseev·Daria M. Vasileva·Konstantin N. Lyashchenko·Igor A. Zhosan·Deyang Yu·Oleg Yu. Andreev
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Abstract

We present a theoretical study of polarization dynamics in the elastic scattering of muons and antimuons by high-magnetic-moment atomic nuclei, using ${}_{83}^{209}$Bi as a benchmark. The analysis tracks the evolution of (anti)muon polarization and its transfer to the nucleus, emphasizing nuclear-structure corrections. These corrections significantly alter both the differential cross sections and the polarization observables. Our results demonstrate that measuring scattered muon polarization serves as a sensitive probe for nuclear charge radii and magnetic dipole moments.

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Ivan A. Moiseev, Daria M. Vasileva, Konstantin N. Lyashchenko, Igor A. Zhosan, Deyang Yu, Oleg Yu. Andreev. 2026-09-08. Hyperfine-driven polarization effects in elastic muon scattering by atomic nuclei. https://arxiv.org/abs/2609.08835

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