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对原子核中不同形状的态之间相互作用的描述是一个有趣和富有挑战性的问题。根据生成坐标方法对传统的投影壳模型理论做出了推广,将经过角动量和粒子数投影的HFB真空作为生成函数,从而使投影壳模型理论发展到能够描述形状相变和表面振动等现象。应用这一方法对N=90附近的Gd同位素进行计算,较好描述了与这一区域的形状相变相关的能谱特性。还引入了一个形变表象来描述波函数在不同形变上的分布,并且发现所讨论的Gd同位素中的第一个Kπ=0+激发态是由
The description of the interaction between different shaped states in the nucleus is an interesting and challenging one. Based on the generative coordinate method, the traditional projection shell model theory has been popularized, and the HFB vacuum, which is projected by angular momentum and particle number, is taken as the generating function, so that the projection shell model theory can be developed to describe the phenomena of shape phase transition and surface vibration. Using this method to calculate the Gd isotope near N = 90, it is better to describe the spectral characteristics related to the shape transition in this region. A deformation appearance was also introduced to describe the distribution of wave functions over different deformations and it was found that the first Kπ = 0 + excited state of the Gd isotope in question was determined by