Journal article

Publication year: 1991

Pages: 1639-1655

Journal: Physical Review C

Volume number: 43

Issue number: 4

ISSN: 0556-2813

eISSN: 1089-490X

DOI Link: https://doi.org/10.1103/PhysRevC.43.1639

Publisher: American Physical Society

Abstract: 
Experiments designed to provide more information on the spectroscopy of Bi-214, and on Pb-214(beta-)Bi-214 in particular, were undertaken because of interest in first-forbidden beta decay in the lead region. The experiments consisted of gamma-gamma coincidences and angular correlations, conversion electron measurements, level lifetime determinations, and precision gamma-ray energy measurements. The 352-keV level of Bi-214 was found to be a strong candidate (and the only candidate) for the 0(1)- state. Recent additions to the Pb-214 decay scheme are confirmed by gamma-gamma coincidence measurements. A careful evaluation of the Bi-214 level scheme is made with emphasis on separating experimentally based conclusions from speculations based on systematics and other "weak" arguments. Shell-model calculations of the spectroscopy of Bi-210, Bi-212 and Pb-210, Pb-212(beta-)Bi-210, Bi-212 were performed using a modification of the Kuo-Herling realistic interaction. These calculations and a generalized seniority model provide a basis for an examination of the systematics of the A = 210, 212, 214 spectroscopy and beta decay. The generalized seniority model is found to be a quite good approximation which provides a quantitative understanding of the Pb-214 decay rates.

Harvard Citation style: BERANT, Z., SCHUHMANN, R., ALBURGER, D., CHOU, W., GILL, R., WARBURTON, E., et al. (1991) SPECTROSCOPY OF BI-214 AND SYSTEMATICS OF PB-210, PB-212, PB-214 (O+)-]BETA- BI-210, BI-212, BI-214(O-), PHYSICAL REVIEW C, 43(4), pp. 1639-1655. https://doi.org/10.1103/PhysRevC.43.1639

APA Citation style: BERANT, Z., SCHUHMANN, R., ALBURGER, D., CHOU, W., GILL, R., WARBURTON, E., & WESSELBORG, C. (1991). SPECTROSCOPY OF BI-214 AND SYSTEMATICS OF PB-210, PB-212, PB-214 (O+)-]BETA- BI-210, BI-212, BI-214(O-). PHYSICAL REVIEW C. 43(4), 1639-1655. https://doi.org/10.1103/PhysRevC.43.1639