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Author  |
Barzakh, A. et al; Algora, A.; Nacher, E. |
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Title |
Charge radii and electromagnetic moments of 214-218Bi: Exploring the “southern” border of the Z > 82 octupole-deformation region |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
112 |
Issue |
3 |
Pages |
034304 - 10pp |
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Abstract |
The changes in the mean-squared charge radii relative to Bi-209(126) (delta < r(2)> N,(126)) and the magnetic dipole and electric quadrupole moments in Bi214-218 have been measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). Magnetic moments of odd-odd bismuth nuclei have been analyzed by the additivity relation. Previous tentative spin-parity and configuration assignments based on the beta-decay feeding patterns have been supported. A normal odd-even staggering in charge radii of bismuth isotopes with N>126 has been observed. The new data for the delta < r(2)> of bismuth isotopes allow a study of the isotonic dependencies in the charge radii, revealing jumps in delta < r(2)>(132,126) and delta < r(2)>(134,126) at Z=84. This pattern could be explained by a sudden onset of octupole deformation at N=132 and 134 when going from polonium (Z=84) to astatine (Z=85). |
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Address |
[Barzakh, A.; Seliverstov, M. D.; Fedorov, D. V.; Molkanov, P.] CERN time Expt, Geneva, Switzerland, Email: barzakh_ae@pnpi.nrcki.ru; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
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Original Title |
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ISSN |
2469-9985 |
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Notes |
WOS:001572134300002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6855 |
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