论文标题
关于超核的稳定性
On the Stability of Superheavy Nuclei
论文作者
论文摘要
在宏观微观近似中评估了均匀的超重核的势能表面。非常快速收敛的分析傅立叶型参数化参数化用于描述整个元素周期表中的核形状，包括裂变核的核形状。 lublin strasbourg滴和另一种有效的液体型质量配方用于确定核能的宏观部分。 Yukawa折叠的单粒子电位，Strutinsky壳校正方法和用于包括配对相关性的BCS近似值用于获得微观能量校正。评估的核结合能，裂变 - 栏键高和Q-Alpha能量与实验数据相对较好一致。一个简单的一维WKB模型，用于估计自发裂变寿命，而在游戏类型模型中获得了α-付费概率。
Potential energy surfaces of even-even superheavy nuclei are evaluated within the macroscopic-microscopic approximation. A very rapidly converging analytical Fourier-type shape parametrization is used to describe nuclear shapes throughout the periodic table, including those of fissioning nuclei. The Lublin Strasbourg Drop and another effective liquid-drop type mass formula are used to determine the macroscopic part of nuclear energy. The Yukawa-folded single-particle potential, the Strutinsky shell-correction method, and the BCS approximation for including pairing correlations are used to obtain microscopic energy corrections. The evaluated nuclear binding energies, fission-barrier heights, and Q-alpha energies show a relatively good agreement with the experimental data. A simple one-dimensional WKB model a la Swiatecki is used to estimate spontaneous fission lifetimes, while alpha-decay probabilities are obtained within a Gamow-type model.
