在超重核区应用Viola Seaborg公式研究α衰变寿
Study on Halflives of α Decay in Region on Superheavy Nuclei by ViolaSeaborg Formula
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摘要: 在超重核区（Z≥104）使用文献7—9给出的3组参数应用ViolaSeaborg公式计算了α衰变寿命， 所得结果与实验值进行比较， 发现其结果与实验值相差较大。 为此， 利用最小二乘法分别在重核区和超重核区重新对参数进行了拟合， 得到的计算结果与实验值相比符合得较理想， 尤其是由超重核得到的参数的结果非常理想。The α decay halflives of the superheavy nuclei in the mass region （Z≥104） were calculated by ViolaSeaborg formula with three sets of parameters. The calculated results show that all the three sets of parameters caused rather large deviations from the experimental data. To solve this problem， we have done a parameter fitting in the regions of heavy nuclei and superheavy nuclei respectively， with the least squares method. With the new sets of parameters， the calculated α decay halflives are in much better agreement with the experimental data. In particular， the results calculated with the new parameters in the region of superheavy nuclei are even better.Abstract: The α decay halflives of the superheavy nuclei in the mass region （Z≥104） were calculated by ViolaSeaborg formula with three sets of parameters. The calculated results show that all the three sets of parameters caused rather large deviations from the experimental data. To solve this problem， we have done a parameter fitting in the regions of heavy nuclei and superheavy nuclei respectively， with the least squares method. With the new sets of parameters， the calculated α decay halflives are in much better agreement with the experimental data. In particular， the results calculated with the new parameters in the region of superheavy nuclei are even better.
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