Quadrupole pairing interaction and signature inversion
Quadrupole pairing interaction and signature inversion
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DOI：
10.1016/s0375-9474(99)00817-9
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发表时间：
2000-04-10
影响因子：
1.4
通讯作者：
Wyss, R
中科院分区：
文献类型：
--
作者：
Xu, FR;Satula, W;Wyss, R
用对和形变自洽平均场方法研究了Cs和La的奇-奇核转动带pi h（11/2）× vh（11/2）和Tb、Ho和Tm的奇-奇核转动带pi h（11/2）× vi（13/2）的旋称反转。该模型可以相当满意地解释异常签名分裂提供的自旋分配在一些带进行了修改。我们的计算表明，签名反转已经可以出现在轴对称的形状。结果表明，这是由于四极子对相互作用的（λ mu）=（22）分量对平均场势的贡献。(C)2000 Elsevier Science B. V.保留所有权利。
The signature inversion in the pi h(11/2) x vh(11/2) rotational bands of the odd-odd Cs and La isotopes and the pi h(11/2) x vi(13/2) bands of the odd-odd Tb, Ho and Tm nuclei is investigated using pairing and deformation self-consistent mean-field calculations, The model can rather satisfactorily account for the anomalous signature splitting provided that spin assignments in some of the bands are revised. Our calculations show that signature inversion can appear already at axially symmetric shapes. It is found that this is due to the contribution of the (lambda mu) = (22) component of the quadrupole-pairing interaction to the mean-field potential. (C) 2000 Elsevier Science B.V. All rights reserved.