Model-independent determination of nuclear charge radii from Li-like ions

Fuente: arXiv
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Main Authors: Yerokhin, V. A., Ohayon, B.
Format: Preprint
Published: 2025
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author Yerokhin, V. A.
Ohayon, B.
author_facet Yerokhin, V. A.
Ohayon, B.
contents We demonstrate that recent advances in QED theory of Li-like ions [V. A. Yerokhin et al., Phys. Rev. A 112, 042801 (2025)] enable determinations of absolute nuclear charge radii for heavy elements. By incorporating constraints derived from electron-scattering data, we obtain radii that are independent of the assumed model of the nuclear charge distribution. Our approach is validated for $^{208}$Pb, a well-studied spherical nucleus, and is then applied to $^{209}$Bi, where low-lying nuclear excitations complicate the interpretation of muonic-atom data.
format Preprint
id arxiv_https___arxiv_org_abs_2510_27427
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Model-independent determination of nuclear charge radii from Li-like ions
Yerokhin, V. A.
Ohayon, B.
Atomic Physics
High Energy Physics - Experiment
Nuclear Theory
We demonstrate that recent advances in QED theory of Li-like ions [V. A. Yerokhin et al., Phys. Rev. A 112, 042801 (2025)] enable determinations of absolute nuclear charge radii for heavy elements. By incorporating constraints derived from electron-scattering data, we obtain radii that are independent of the assumed model of the nuclear charge distribution. Our approach is validated for $^{208}$Pb, a well-studied spherical nucleus, and is then applied to $^{209}$Bi, where low-lying nuclear excitations complicate the interpretation of muonic-atom data.
title Model-independent determination of nuclear charge radii from Li-like ions
topic Atomic Physics
High Energy Physics - Experiment
Nuclear Theory
url https://arxiv.org/abs/2510.27427