超重Z=113-116元素β^-衰变寿命的计算研究

Computing studies on the β^--decay lives of nuclei in the superheavy Z=113-116 element region

超重元素结构和性质的研究对于超重核实验的合成具有重要的意义,而超重核素β-衰变寿命是了解超重核素结构的重要性质之一。利用我们提出的远离β稳定线原子核β-衰变寿命的指数规律理论计算公式,对超重区原子核Z=113-116同位素链上β-衰变寿命进行了系统的理论计算和讨论。计算结果与当前普遍采用的宏观-微观模型结果进行了比较,结果表明:该指数计算公式对超重附近原子核寿命的计算结果与宏观-微观模型的结果符合较好。

Studies of nuclear structure of superheavy nuclei is of great importance in synthesizing of new superheavy elements. The decay lives is one of the important properties for the understanding of superheavy structure. In this paper, we put forward the exponentially decay formula for the half lives of nuclei far from stability. Using this formula, the decay half lives of nuclei in the Z = 113 - 116 isotopes are systematically calculated and discussed. It is shown that the calculated results are in good agreement with theoretical results from macroscopic-microscopic calculations.