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

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dc.contributor.authorYue, Z.
dc.contributor.authorOrce, José Nicolás
dc.contributor.authorBarzakh, A. E.
dc.date.accessioned2024-11-13T10:08:12Z
dc.date.available2024-11-13T10:08:12Z
dc.date.issued2024
dc.description.abstractThe changes in the mean-squared charge radius of 209Tlg (N = 128) and 207Tlm (N = 126) relative to 205Tl 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 et al. 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.
dc.identifier.citationYue, Z., Barzakh, A.E., Andreyev, A.N., Borzov, I.N., Cubiss, J.G., Algora, A., Au, M., Balogh, M., Bara, S., Bark, R.A. and Bernerd, C., 2024. Charge radii of thallium isotopes near the N= 126 shell closure. Physical Review C, 110(3), p.034315.
dc.identifier.urihttps://doi.org/10.1103/PhysRevC.110.034315
dc.identifier.urihttps://hdl.handle.net/10566/19656
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subjectNuclear charge distribution
dc.subjectNuclear density functional theory
dc.subjectNuclear radii
dc.subjectNuclear structure & decays
dc.subjectthallium isotopes
dc.titleCharge radii of thallium isotopes near the n = 126 shell closure
dc.typeArticle

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