Barzakh, A, Andreyev, AN, Raison, C, Cubiss, JG, Van Duppen, P, Peru, S, Hilaire, S, Goriely, S, Andel, B, Antalic, S et al (show 47 more authors)
(2021)
Large Shape Staggering in Neutron-Deficient Bi Isotopes.
PHYSICAL REVIEW LETTERS, 127 (9).
192501-.
Text
PhysRevLett.127.192501.pdf - Published version Download (485kB) | Preview |
Abstract
The changes in the mean-square charge radius (relative to ^{209}Bi), magnetic dipole, and electric quadrupole moments of ^{187,188,189,191}Bi were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in ^{187,188,189}Bi^{g}, manifested by a sharp radius increase for the ground state of ^{188}Bi relative to the neighboring ^{187,189}Bi^{g}. A large isomer shift was also observed for ^{188}Bi^{m}. Both effects happen at the same neutron number, N=105, where the shape staggering and a similar isomer shift were observed in the mercury isotopes. Experimental results are reproduced by mean-field calculations where the ground or isomeric states were identified by the blocked quasiparticle configuration compatible with the observed spin, parity, and magnetic moment.
Item Type: | Article |
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Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 16 Nov 2021 08:46 |
Last Modified: | 18 Jan 2023 21:24 |
DOI: | 10.1103/PhysRevLett.127.192501 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3143199 |