多维约束相对论平均场模型中even-A铀同位素的基态和裂变特性

IF 1 4区物理与天体物理 Q4 PHYSICS, NUCLEAR

International Journal of Modern Physics E Pub Date : 2023-03-23 DOI:10.1142/s0218301323400049

Xiangkai Deng, Shan-Gui Zhou

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引用次数: 0

摘要

建立了多维约束协变密度泛函理论(MDC-CDFTs)来研究八极和三轴变形对基态和裂变特性的影响。本文简要介绍了mdc - cdft的应用，并讨论了用BCS方法处理的具有配对相关的mdc - cdft模型之一的MDC-RMF模型系统研究偶a铀同位素的结果。我们详细地研究了这些铀同位素的二维势能面$E(\beta_{20}，\beta_{30})$，并讨论了基态和裂变性质以及势能面上的第三和第四极小值。重点讨论了八极和三轴变形的影响。

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Ground state and fission properties of even-A uranium isotopes from multidimensionally-constrained relativistic mean field model

The multidimensionally-constrained covariant density functional theories (MDC-CDFTs) have been developed to study the influence of octupole and triaxial deformations on the ground state and fission properties. In this paper, we present a brief review of the applications of MDC-CDFTs and discuss the results of a systematical study of even-$A$ uranium isotopes with the MDC-RMF model which is one of MDC-CDFTs with pairing correlations treated by using the BCS approach. We examine in detail the two-dimensional potential energy surfaces $E(\beta_{20},\beta_{30})$ of these U isotopes and discuss the ground state and fission properties as well as third and fourth minima on the potential energy surfaces. The emphasis is put on the effects of octupole and triaxial deformations.

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来源期刊

International Journal of Modern Physics E 物理-物理：核物理

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： This journal covers the topics on experimental and theoretical nuclear physics, and its applications and interface with astrophysics and particle physics. The journal publishes research articles as well as review articles on topics of current interest.