形变准粒子RPA（DQRPA）中费米面涂抹引起的形变核$^{76}\textrm{Ge}$和$^{82}\textrm{Se}$的高激发态
High-lying Gamow-Teller excited states in the deformed nuclei, $^{76}\textrm{Ge}$ and $^{82}\textrm{Se}$, by the smearing of the Fermi surface in Deformed Quasi-particle RPA (DQRPA)
摘要：
随着探测超过一个核子发射阈值的Gamow-Teller（GT）激发态的高分析技术的出现，GT强度对Ikeda求和规则的猝灭似乎可以通过高位GT态来恢复。此外，在某些核中，比任何其它峰更强的GT峰明显地出现在高激发态的激发态中。我们解决这些高躺GT激发态源于费米面的涂抹的化学势的增加，由于变形准粒子无规相近似（DQRPA）的框架内的变形。详细的机制导致的涂抹进行了讨论，并与现有的实验数据进行比较，以解释强峰上的高躺GT激发态在一个令人满意的方式。
英文摘要：
With the advent of high analysis technology in detecting the Gamow-Teller (GT) excited states beyond one nucleon emission threshold, the quenching of the GT strength to the Ikeda sum rule seems to be recovered by the high-lying GT states. Moreover, in some nuclei, the stronger GT peaks than any other peaks appear explicitly in the high-lying excited states. We address that these high-lying GT excited states stems from the smearing of the Fermi surface by the increase of the chemical potential owing to the deformation within a framework of the deformed quasi-particle random phase approximation (DQRPA). Detailed mechanism leading to the smearing is discussed, and comparisons to the available experimental data are shown to explain the strong peaks on the high-lying GT excited states in a satisfactory manner.
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