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arXiv 0812.4597nucl-thnucl-ex
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粒子转子模型中$A$奇核$^{135}$ Nd的手征

Chirality in odd-$A$ nucleus $^{135}$Nd in particle rotor model

B. Qi, S. Q. Zhang, J. Meng, S. Y. Wang, S. Frauendorf

摘要:

本文提出了一个粒子转子模型,它把几个价质子和中子耦合到一个刚性的三轴转子铁心上。首次应用全量子方法研究了具有$πh_{11/2}^2\otimesνh^{-1}_{11/2}$组态的奇$A$核$^{135}$ Nd的手征性。对于两个手性姐妹带,观察到的能量和带内以及带间跃迁的$B(M1)$和$B(E2)$值被很好地再现。角动量分量的均方根值及其概率分布被用来详细讨论非平面旋转的手征几何及其随角动量的演化。发现手性在自旋$I=39/2$处从软手性振动变为近静态手性,在更高自旋处又回到另一种类型的手性振动。

英文摘要:

A particle rotor model is developed which couples several valence protons and neutrons to a rigid triaxial rotor core. It is applied to investigating the chirality in odd-$A$ nucleus $^{135}$Nd with $πh_{11/2}^2\otimesνh^{-1}_{11/2}$ configuration for the first time in a fully quantal approach. For the two chiral sister bands, the observed energies and the $B(M1)$ and $B(E2)$ values for the in-band as well as interband transitions are reproduced excellently. Root mean square values of the angular momentum components and their probability distributions are used for discussing in detail the chiral geometry of the aplanar rotation and its evolution with angular momentum. Chirality is found to change from a soft chiral vibration to nearly static chirality at spin $I=39/2$ and back to another type of chiral vibration at higher spin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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