Systematic Calculation on Ground State Properties of Even-even Superheavy Nuclei Using Relativistic Mean Field Theory

• 作者: ZhangHongfei ZuoWei SoojaeRenIm ZhouXiaohong LiJunqing
• 来源期刊: 近代物理研究所和兰州重离子加速器实验室年报：英文版
• 学科: 物理学
• 关键词: 对称计算 超重元素 核子 相对论 大统一场
• 年，卷（期）: 2003,（1）
• 页码范围: 17
• 页数: 1页
• 分类号: O572.24

摘要

In recent years the discovery of Super Heavy Element (SHE) with atomic number Z=108～116 has opened up a new era of research in nuclear physics, however, the extreme difficulties to synthesize SHE greatly restrict the experimental studies on it, so that the theoretical studies are very important. The Relativistic Mean Field theory (RMF) is proved to be a simple and successful theory due to its great success in describing the bulk properties at the β-stable valley, as well as nuclei far from the β-stable line, and gives good predictions for nuclei far beyond the end of the known periodic table. In the framework of RMF we have calculated the properties on SHN such as the binding energy, the deformation, single and double neutron separation energy, and the a-decay half-life and so on for nuclei Z=108～114 and N=156～190. The axial deformations considered by using the expansion of harmonic oscillator basis. The Lagrangian wc have used is as the following form: