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arXiv 1111.3425nucl-thnucl-ex
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热旋转核中的成对再进入

Pairing reentrance in hot rotating nuclei

N. Quang Hung, N. Dinh Dang

摘要:

在基于BCS的准粒子方法中计算了$^{60}$ Ni核和$^{72}$ Ge核的配对能隙、热容和能级密度,包括配对模型中配对场的热涨落效应以及沿z轴的非集体转动.对数值结果的分析表明,除了对能隙外,热容量也可以作为探测热旋转核中对重进入的一个很好的观测量,而能级密度中的这种特征是相当弱的。

英文摘要:

The pairing gaps, heat capacities and level densities are calculated within the BCS-based quasiparticle approach including the effect of thermal fluctuations on the pairing field within the pairing model plus noncollective rotation along the z axis for $^{60}$Ni and $^{72}$Ge nuclei. The analysis of the numerical results obtained shows that, in addition to the pairing gap, the heat capacity can also serve as a good observable to detect the appearance of the pairing reentrance in hot rotating nuclei, whereas such signature in the level density is rather weak.

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