arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.01651nucl-th
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含形变相关质量项的三轴核的Hulthen加环形势的玻尔哈密顿量

Bohr Hamiltonian with Hulthen plus ring-shaped potential for triaxial nuclei with deformation-dependent mass term

A. Adahchour, S. Ait El Korchi, A. El Batoul, A. Lahbas, M. Oulne

摘要:

在这项工作中,我们提出了一个新的版本的玻尔集体哈密顿量的三轴核变形相关的质量形式主义(DDM)使用Hulthén势。我们称之为Z(5)-HD模型。能谱的解析表达式是由最近版本的渐近迭代法导出的。将计算得到的能量和B(E2)跃迁速率与实验数据、Z(5)模型的理论计算结果、采用Hulthén势的Z(5)-H模型的理论计算结果以及采用Davidson势的Z(5)-DD模型的理论计算结果进行了比较。所得到的结果显示与实验数据的总体协议和一个重要的改进,在其他模型。

英文摘要:

In this work, we present a new version of the Bohr collective Hamiltonian for triaxial nuclei within Deformation-Dependent Mass formalism (DDM) using the Hulthén potential. We shall call the developed model Z(5)-HD. Analytical expressions for energy spectra are derived by means of the recent version of the Asymptotic Iteration Method. The calculated numerical results of energies and B(E2) transition rates are compared with the experimental data, and several theoretical results from Z(5) model, the model Z(5)-H using the Hulthén potential without DDM formalism as well as theoretical predictions of Z(5)-DD model with Davidson potential using DDM formalism. The obtained results show an overall agreement with experimental data and an important improvement in respect to the other models.

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