物理学进展

物理学进展 ›› 2021, Vol. 41 ›› Issue (4): 157-169.doi: 10.13725/j.cnki.pip.2021.04.001

所属专题： 2022年, 第42卷

• •    下一篇

采用双核模型研究超重核合成机制

  

  1. 1. 兰州大学核科学与技术学院，兰州730000; 2. 深圳大学光电工程学院，深圳518061; 3. 湖南师范大学物理与电子科学学院，长沙410081

  • 出版日期:2021-08-20 发布日期:2021-08-19

Study of the Synthesis of Super Heavy Nuclei Based on Dinuclear System

  1. 1. School of Nuclear Science and Technology,Lanzhou University, Lanzhou 730000; 2. College of Optoelectronic Engineering,Shenzhen University，Shenzhen 518061; 3. School of Physics and Electronics,Hunan Normal University，Changsha 410081

  • Online:2021-08-20 Published:2021-08-19

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摘要：

本文首先介绍了两种描述低能重离子核反应的理论，然后基于这些理论发展了一个描述超重核合成的理论模型，即双核模型(dinuclear system model)。不同于Adamian 的处理，本文的模型采用数值求解主方程的方法来描述重离子的熔合过程，重点讨论了熔合过程中主方程的发展演化，选择一维至三维不同的宏观自由度说明重离子熔合机制，为今后进一步发展模型与预言新核素提供理论依据。

关键词: 超重核, 双核模型, 熔合机制, 主方程

Abstract:

This review firstly introduces two low energy heavy ion reaction mechanisms. Then, based on these theories, we have developed a dinuclear system model describing the synthesis of super heavy nuclear. Different from Adamian’s calculation method, we solve the master equation numerically to describe the heavy ion fusion mechanism. This review chooses 1D to 3D different macroscopic degrees of freedom to illustrate the fusion of heavy ions, focusing on the development and evolution of the master equation during the fusion process, and providing a theoretical basis for further development of models and predictions of new nuclides in the future.

Key words: super heavy nuclei, dinuclear system model, fusion mechanism, master equation

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