Effects of center-of-mass correction and nucleon anomalous magnetic moments on nuclear charge radii

Tanimura, Yusuke; Cheoun, Myung-Ki

doi:10.1103/physrevc.109.054323

Phys. Rev. C

2024

DOI: 10.1103/physrevc.109.054323

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Effects of center-of-mass correction and nucleon anomalous magnetic moments on nuclear charge radii

Yusuke Tanimura,

Myung-Ki Cheoun

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2024

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Charge radii of thallium isotopes near the N=126 shell closure

Yue,

Barzakh,

Andreyev

et al. 2024

Phys. Rev. C

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The changes in the mean-squared charge radius of Tlg209 (N=128) and Tlm207 (N=126) relative to Tl205 have been measured for the first time using the in-source laser resonance-ionization spectroscopy technique with the Laser Ion Source and Trap (LIST) at ISOLDE (CERN). The application of the LIST suppresses the dominant background from isobaric francium isotopes and allows access to thallium nuclides with A⩾207. The characteristic kink in the charge radii at the N=126 neutron shell closure, as well as the odd-even effect similar to that in the adjacent bismuth, lead, and mercury isotopic chains, have been observed. The self-consistent theory of finite Fermi systems based on the energy density functional by Fayans reproduces the behavior of charge radii in these isotopic chains near N=126. The comparison with calculations in the framework of the relativistic mean field (RMF) approach is also presented. In the case of the Fayans functional it is a specific form of pairing interaction with the dependence on the density gradient that is essential to provide agreement with the experimental charge radii. In particular, the kink is reproduced without the inversion of g9/2 and i11/2 neutron single-particle states, which is a prerequisite to correctly describe the kink in the RMF models. Published by the American Physical Society 2024

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Charge radii of thallium isotopes near the N=126 shell closure

Yue,

Barzakh,

Andreyev

et al. 2024

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

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Effects of center-of-mass correction and nucleon anomalous magnetic moments on nuclear charge radii

Cited by 1 publication

References 74 publications

Charge radii of thallium isotopes near the N=126 shell closure

Charge radii of thallium isotopes near the N=126 shell closure

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