Magnetic moments of thallium isotopes in the vicinity of magic N = 126
Thallium
Isobaric process
DOI:
10.1016/j.physletb.2024.138452
Publication Date:
2024-01-17T16:46:32Z
AUTHORS (60)
ABSTRACT
The magnetic dipole moments (μ) of 209Tlg (N=128) and 207Tlm (N=126) have been measured for the first time using in-source laser resonance-ionization spectroscopy technique with Laser Ion Source Trap (LIST) at ISOLDE (CERN). application LIST suppresses usually overwhelming background isobaric francium isotopes allows access to heavy thallium A⩾207. self-consistent theory finite Fermi systems based on energy density functional by Fayans et al. well describes N dependence μ 1/2+ ground states, as 11/2− isomeric states in europium, gold isotopes. inclusion particle-vibration coupling leads a better agreement between experiment μ(Tlg, Iπ=1/2+). It is shown that beyond mean-field contributions cannot be neglected least Iπ=1/2+.
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