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arXiv 1301.6004nucl-th
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稀土偶偶核双回弯的半微观描述

Semi-microscopic description of the double backbending in some deformed even-even rare earth nuclei

R. Budaca, A. A. Raduta

摘要:

本文提出了一个研究稀土区形变偶偶核中中子和质子诱导回弯现象的半微观模型。粒子核态的空间由四极形变产物态的角动量投影定义。后弯现象描述混合四个旋转带,定义由一组角动量投影状态,和一个模型哈密顿描述一组成对的粒子在变形的平均场和相互作用的现象变形的核心。基带对应于所有粒子成对的结构,而其他旋转带建立在一个中子或/和一个质子断裂对上。四个稀土偶偶核,目前在观察到的转动惯量的第二个异常成功地处理在所提出的模型。

英文摘要:

A semi-microscopic model to study the neutron and proton induced backbending phenomena in some deformed even-even nuclei from the rare earth region, is proposed. The space of particle-core states is defined by the angular momentum projection of a quadrupole deformed product state. The backbending phenomena are described by mixing four rotational bands, defined by a set of angular momentum projected states, and a model Hamiltonian describing a set of paired particles moving in a deformed mean field and interacting with a phenomenological deformed core. The ground band corresponds to the configuration where all particles are paired while the other rotational bands are built on one neutron or/and one proton broken pair. Four rare earth even-even nuclei which present the second anomaly in the observed moments of inertia are successfully treated within the proposed model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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