TY  - JOUR
AU  - Yue, Z. et al
AU  - Algora, A.
AU  - Nacher, E.
PY  - 2024
DA  - 2024//
TI  - Magnetic moments of thallium isotopes in the vicinity of magic N=126
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 138452
EP  - 7pp
VL  - 849
PB  - Elsevier
KW  - Laser spectroscopy
KW  - Hyperfine structure
KW  - Magnetic dipole moments
KW  - Theory of finite Fermi systems
AB  - The magnetic dipole moments (mu) of Tl-209(g)(N =128) and Tl-207(m)(N = 126) 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 usually overwhelming background of the isobaric francium isotopes and allows access to heavy thallium isotopes with >207. The self -consistent theory of finite Fermi systems based on the energy density functional by Fayans et al. well describes the N dependence of μfor 1/2(+) thallium ground states, as well as μfor the 11/2(-) isomeric states in europium, gold and thallium isotopes. The inclusion of particle-vibration coupling leads to a better agreement between the theory and experiment for mu(Tl-g , I-pi = 1/2(+)). It is shown that beyond mean-field contributions tocannot be neglected at least for thallium isotopes with I-pi = 1/2(+).
SN  - 0370-2693
UR  - https://doi.org/10.1016/j.physletb.2024.138452
DO  - 10.1016/j.physletb.2024.138452
LA  - English
N1  - WOS:001180137800001
ID  - Yue_etal2024
ER  -