在传统的计算能隙Δ的三参数公式基础上,通过曲线拟合,消除了同位旋变化对结合能的影响,得到了更为理想的能隙Δ计算方法。计算发现,粒子数越少,同位旋的影响越大,传统计算方法产生的偏差越大,而新的计算方法,无论是在轻核区还是在重核区,得到的结果更接近于经验公式。
Based on the traditional Three-Parameter formula for extracting energy gap Δ,an improved method has been obtained through fitting the data and eliminating the impact of the isospin effect on the binding energy.We find with our new calculations that the fewer the particle number,the greater the impact of isospin,and therefore,the greater the deviation caused in the traditional method.On the other hand,the results obtained by the present method,either for nuclei in the light mass or in heavy mass region,are much closer to the results of the empirical pairing formula.
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