A new barrier penetration formula and its application to α-decay half-lives

分类： 物理学 >> 核物理学 提交时间： 2017-08-22

Lu-Lu Li Shan-Gui Zhou En-Guang Zhao Werner Scheid

摘要： Starting from the WKB approximation, a new barrier penetration formula is proposed for poten- tial barriers containing a long-range Coulomb interaction. This formula is especially proper for the barrier penetration with penetration energy much lower than the Coulomb barrier. The penetra- bilities calculated from the new formula agree well with the results from the WKB method. As a first attempt, this new formula is used to evaluate α decay half-lives of atomic nuclei and a good agreement with the experiment is obtained.

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