标题： 一种$U_{qp}(u_2)$旋转子模型用于超形变核的旋转带 显示英文标题

标题： An $U_{qp}(u_2)$ Rotor Model for Rotational Bands of Superdeformed Nuclei

摘要： 从双参数量子代数$U_{qp}({\rm u}_2)$发展出一种非刚性转子模型。[该模型呈现$U_{qp}({\rm u}_2)$对称性，将被称为 qp-转子模型。] 推导出旋转能公式以及 E2 缩减跃迁概率的 qp 变形。qp-转子模型通过拟合过程应用于超形变核在$A \sim 130$、150 和 190 质量区域的二十个旋转能带。对 qp-转子模型与 Raychev、Roussev 和 Smirnov 的 q-转子模型，以及另一方面的一个基本三参数模型，在能量谱、动力惯性矩和 B(E2) 值方面进行了系统比较。讨论了变形参数 q 和 p 的物理意义。 显示英文摘要

摘要： A nonrigid rotor model is developed from the two-parameter quantum algebra $U_{qp}({\rm u}_2)$. [This model presents the $U_{qp}({\rm u}_2)$ symmetry and shall be referred to as the qp-rotor model.] A rotational energy formula as well as a qp-deformation of E2 reduced transition probabilities are derived. The qp-rotor model is applied (through fitting procedures) to twenty rotational bands of superdeformed nuclei in the $A \sim 130$, 150 and 190 mass regions. Systematic comparisons between the qp-rotor model and the q-rotor model of Raychev, Roussev and Smirnov, on one hand, and a basic three-parameter model, on the other hand, are performed on energy spectra, on dynamical moments of inertia and on B(E2) values. The physical signification of the deformation parameters q and p is discussed.