beta-delayed proton decays of Sm-133 and Yb-149


Autoria(s): Xu, SW (Xu Shu-Wei); Xie, YX (Xie Yuan-Xiang); Li, ZK (Li Zhan-Kui); Xu, FR (Xu Fu-Rong); Liu, HL (Liu Hong-Liang)
Data(s)

3902

Resumo

Sm-133 was produced via fusion evaporation in the reaction Ca-40+Ru-96. Its P-delayed proton decay was studied by means of "p-gamma" coincidence in combination with a He-jet tape transport system, including half-lives, proton energy spectra, gamma-transitions following the proton emissions, and the branching ratios to the low-lying states in the grand-daughter nuclei. The possible spins and parities of 133Sm were extracted by fitting the experimental data with a statistical model calculation. The configuration-constrained nuclear potential energy surfaces of Sm-133 were calculated by using the Woods-Saxon Strutinsky method. Comparing the experimental and calculated results, the spins and parities Of Sm-133 were assigned to be 5/2(+) and 1/2(-), which is reconciled with our published simple (EC+beta(+)) decay scheme Of Sm-113 in 2001. In addition, our experimental data on the beta-delayed proton decay of Yb-149 reported in Eur. Phys. J., 2001, A12: 1-4 was also analyzed by using the same method. The spin and parity of Yb-149 was assigned to be 1/2-.

Identificador

http://ir.impcas.ac.cn/handle/113462/6119

http://www.irgrid.ac.cn/handle/1471x/132745

Idioma(s)

中文

Fonte

Xu, SW (Xu Shu-Wei); Xie, YX (Xie Yuan-Xiang); Li, ZK (Li Zhan-Kui); Xu, FR (Xu Fu-Rong); Liu, HL (Liu Hong-Liang).beta-delayed proton decays of Sm-133 and Yb-149, HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION ,39022,30(11):1067-1070

Palavras-Chave #beta-delayed proton decay #nuclear potential energy surface #spin #parity
Tipo

期刊论文