2026-06-29T01:32:49Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1246542025-10-08T23:55:11Zcom_20.500.14352_14col_20.500.14352_15
Charge radii and electromagnetic moments of 214-218Bi: Exploring the "southern" border of the Z > 82 octupole-deformation region
Barzakh, A.
Benito García, Jaime
Fraile Prieto, Luis Mario
Rodríguez Murias, Javier
Sánchez Tembleque Verbo, Víctor
Vedia Fernández, María Victoria
Verlinde, M.
Viñals, S.
Warr, N.
Welker, A.
The changes in the mean-squared charge radii relative to 209Bi126 (δ(r 2) N,126), the magnetic dipole and electric quadrupole moments in214−218Bi have been measured using the in-source resonanceionization 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 β-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 δ(r 2) of bismuth isotopes allow a study of the isotonic dependencies in the charge radii, revealing jumps in δ(r2)132,126 and δ(r2)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).
2025-10-08T10:33:52Z
2025-10-08T10:33:52Z
2025-10-08T10:33:52Z
2025-09-04
journal article
https://hdl.handle.net/20.500.14352/124654
2469-9985
10.1103/sltw-g4d6
2469-9993
eng
PN 23 21 01 02
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126998OB-I00/ES/ESTRUCTURA NUCLEAR Y APLICACIONES CON CENTELLEADORES RAPIDOS/
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Barzakh, A., et al. «Charge Radii and Electromagnetic Moments of Bi 214 − 218 : Exploring the “Southern” Border of the Z > 82 Octupole-Deformation Region». Physical Review C, vol. 112, n.o 3, septiembre de 2025, p. 034304. DOI.org (Crossref), https://doi.org/10.1103/sltw-g4d6.
open access
American Physical Society