CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Alternative TitleCalculation of yrast bands for odd-odd nuclei Rb-80,Rb-82 in A approximate to 80 mass region
Shen, SF(沈水法); Gu, JH(顾嘉辉); Shen, WQ(沈文庆)
Source Publication高能物理与核物理

Several mechanisms have been proposed for the signature inversion in the structure of A, 80 odd-odd nuclei, but the theoretical calculations have not been conclusive. In this work, the angular momentum projected shell model (PSM) is applied to the nuclei (80,82) Rb. The results of theoretical calculations about the positive-parity yrast band with configuration pig(9/2) circle times nu g(9/2) and the negative-parity yrast band with configuration pi(P-1/2 or P-3/2 or f(5/2)) circle times nu g(9/2) are compared with experimental data, especially, the mechanism of the signature inversion in the positive-parity yrast band is discussed. The interpretation within the projected shell model shows that the signature inversion displayed in the positive-parity yrast band in these nuclei is a signal of a substantial quadrupole shape change with increasing spin where the nucleus evolves from a prolate shape at low spin through a triaxial shape to an oblate shape at high spin. In addition, we also specify the nuclear shape for these two bands in these two unclei, respectively.

Indexed BySCI
Funding Project应物所项目组
WOS IDWOS:000220242500012
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Document Type期刊论文
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Shen, SF(沈水法),Gu, JH(顾嘉辉),Shen, WQ(沈文庆). A≈80区奇-奇核80,82Rb的晕带能谱计算[J]. 高能物理与核物理,2004,28(3):274-279.
APA Shen, SF,Gu, JH,&Shen, WQ.(2004).A≈80区奇-奇核80,82Rb的晕带能谱计算.高能物理与核物理,28(3),274-279.
MLA Shen, SF,et al."A≈80区奇-奇核80,82Rb的晕带能谱计算".高能物理与核物理 28.3(2004):274-279.
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