Bethe–Weizsäcker semiempirical mass formula coefficients 2019 update based on AME2016
Bethe–Weizsäcker semiempirical mass formula coefficients 2019 update based on AME2016
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DOI：
10.1007/s41365-019-0718-8
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发表时间：
2020-01
影响因子：
2.8
通讯作者：
D. Benzaid;S. Bentridi;Abdelkader Kerraci;N. Amrani
中科院分区：
文献类型：
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作者：
D. Benzaid;S. Bentridi;Abdelkader Kerraci;N. Amrani
在目前的工作中，重新审视并更新了具有五个能量项的经典 Bethe–Weizsäcker (BW) 质量公式。我们对 2017 年 3 月发布的最新原子质量评估 AME2016 中的 2497 种不同核素的结合能进行最小二乘调整，以提供一组新的质量公式能量系数。获得的一组公式系数使我们能够重现每个核的结合能的大部分实验值。一方面，更新的质量公式提供的结合能与 AME2016 的结合能之间的比较，另一方面，与之前作品的结合能之间的比较，产生了在小于和之间振荡的相对误差。重新审视的 BW 公式与实验数据非常吻合。
In the present work, the classical Bethe–Weizsäcker (BW) mass formula with five energy terms is revisited and updated. We use the least-squares adjustments on the binding energy of 2497 different nuclides from the last update of the atomic mass evaluation, AME2016 published in March 2017, to provide a new set of energy coefficients of the mass formula. The obtained set of formula coefficients allowed us to reproduce most of the experimental values of the binding energies for each nucleus with. The comparison between the binding energies provided with updated mass formula and those of AME2016 on the one hand, and those of previous works, on the other hand, yields relative errors that oscillate between less thanand. The revisited BW formula is in very good agreement with the experimental data.