Large Shape Staggering in Neutron-Deficient Bi Isotopes
Abstract
The changes in the mean-square charge radius (relative to 209Bi), magnetic dipole, and electric quadrupole moments of 187;188;189;191Bi were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in 187;188;189Big, manifested by a sharp radius increase for the ground state of 188Bi relative to the neighboring 187;189Big. A large isomer shift was also observed for 188Bim. Both effects happen at the same neutron number, N ¼ 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.
Main Authors
Format
Articles
Research article
Published
2021
Series
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202111295819Use this for linking
Review status
Peer reviewed
ISSN
0031-9007
DOI
https://doi.org/10.1103/PhysRevLett.127.192501
Language
English
Published in
Physical Review Letters
Citation
- Barzakh, A., Andreyev, A. N., Raison, C., Cubiss, J. G., Van Duppen, P., Péru, S., Hilaire, S., Goriely, S., Andel, B., Antalic, S., Al Monthery, M., Berengut, J. C., Bieroń, J., Bissell, M. L., Borschevsky, A., Chrysalidis, K., Cocolios, T. E., Day Goodacre, T., Dognon, J.-P., . . . Zaitsevskii, A. V. (2021). Large Shape Staggering in Neutron-Deficient Bi Isotopes. Physical Review Letters, 127(9), Article 192501. https://doi.org/10.1103/PhysRevLett.127.192501
License
Funder(s)
European Commission
European Commission
Funding program(s)
Research infrastructures, H2020
ERC Consolidator Grant
Research infrastructures, H2020
ERC Consolidator Grant
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
S. G. acknowledges financial support from FNRS (Belgium). J. G. L. acknowledges financial support by the National Natural Science Foundation of China under Grant No. 11874090. M. St. acknowledges the funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 771036 (ERC CoG MAIDEN). This work was supported by the Fonds de la Recherche Scientifique (F. R. S.-FNRS) and the Fonds Wetenschappelijk Onderzoek-Vlaanderen (FWO) under the EOS Project No. O022818F, by GOA/2015/010 (BOF KU Leuven), the Interuniversity Attraction Poles Programme initiated by the Belgian Science Policy Office (BriX network
P7/12), by the ENSAR2: European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 654002, by the U.K. Science and Technology Facilities Council, by the Slovak Research and Development Agency (Contract No. APVV-18-0268), by the Slovak grant agency VEGA (Contract No. 1/0651/21), by RFBR according to the research project N 19-02-00005, by the Russian Science Foundation (Grant No. 19-72-10019), by RFBR according to the research project N 20-32-70177, by the foundation for the advancement of theoretical physics and mathematics “BASIS” grant according to Projects No. 21-1-2-47-1 and No. 20-1-5-76-1.
Copyright© Authors, 2021