The method of time-ordered graph decoupling and its application to the description of giant resonances in magic nuclei
The method of time-ordered graph decoupling and its application to the description of giant resonances in magic nuclei
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时序图解耦方法及其在魔核巨共振描述中的应用
DOI：
10.1134/1.953052
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发表时间：
1997
影响因子：
0.4
通讯作者：
V. Tselyaev
中科院分区：
文献类型：
--
作者：
S. Kamerdzhiev;G. Tertychnyi;V. Tselyaev
描述了一种分析幻核激发态的微观方法。它是基于量子格林函数方法的系统使用。当应用于巨多极共振理论时，该方法明确地包括了有限核中共振形成的三个主要机制：通过离散谱的粒子-空穴组态的衰变，通过粒子在连续谱中的粒子-空穴组态的衰变，以及通过更复杂的粒子-空穴⊗声子型组态的衰变。讨论了用这种方法描述幻数稳定核和不稳定核的巨共振的数值实现结果。
A microscopic approach to analyzing the excited states of magic nuclei is described. It is based on the systematic use of the method of quantum Green functions. When applied to the theory of giant multipole resonances, the approach explicitly includes the three principle mechanisms of resonance formation in a finite nucleus: decay via particle–hole configurations of the discrete spectrum, decay via particle–hole configurations with a particle in the continuum, and decay via more complicated configurations of the particle–hole⊗phonon type. The results of a numerical realization of this approach for describing giant resonances in magic stable and unstable nuclei are discussed.