转动区偶偶核正宇称态的八极关联效应  

Effects of Positive-Parity States Octupole Correlations for Even-Even Nuclei in Rotational Regions

作　　者：钱诚德 

机构地区：[1]上海交通大学应用物理系

出　　处：《高能物理与核物理》1994年第5期473-480,共8页High Energy Physics and Nuclear Physics

摘　　要：运用了Ｕｓｄｐｆ（１６）相互作用玻色子模型讨论了八极自由度Ｐ和ｆ玻色子对转动区偶偶核正宇称态的效应．结果表明，偶数个Ｐ和ｆ玻色子的组态能够混入到通常的基态带，β和γ振动带，并且自然地形成Ｋπ＝１＋、３＋等转动带．这一结果与Ｕｓｄｇ（１５）－ＩＢＭ相类似．本文还简要地给出了基态带间的Ｅ２约化跃迁几率，其结果与Ｕｓｄ（６）－ＩＢＭ相一致．Within the framework of the Usdpf (16) interacting boson model, effects of theoctupole degree of freedom p-and f-bosons on the positive-parity states of even-evennuclei in rotational regions are discussed. It is shown that configurations of an evennumber of p-and f-bosons not only can be incorporated into the usual ground stateband, β- .γ-vibrational bands, but also naturally form the Kπ=1+.3+ rotational bandsetc. This result is similar to that of the Usdg (15)-IBM. Besides, E2 transition probabilities are discussed briefly.

关 键 词：八极关联 转动带 偶-偶核 正宇称态 

分 类 号：O571.2[理学—粒子物理与原子核物理]