arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1709.05451nucl-th
收藏

核质量抛物线及其应用

Nuclear mass parabola and its applications

Junlong Tian, Di Yuan, Yunyi Cui, Yun Huang, Ning Wang

摘要:

提出了一种基于同量异位核总双$β$衰变能提取同量异位核质量抛物线性质的方法。基于AME2016数据库中汇编的原子核双$β$衰变总能量,得到了251 A值下质量抛物线的两个重要参数,即最稳定原子核$Z_{A}$的位置和曲率参数$b_{A}$。这种方法的优点是可以去除由奇偶变化引起的对能项$P_{A}$,以及性能过程中最稳定核素对质量数$A$的质量过剩量$M(A,Z_{A})$。库仑能量系数$a_{c}=0.6910$ MeV由镜像核的质量差关系确定,对称能量系数也由$a_{\rm sym}(A)=0.25b_{A}Z_{A}$关系研究。

英文摘要:

We propose a method to extract the properties of the isobaric mass parabola based on the total double $β$ decay energies of isobaric nuclei. Two important parameters of the mass parabola, the location of the most $β$-stable nuclei $Z_{A}$ and the curvature parameter $b_{A}$, are obtained for 251 A values based on the total double $β$ decay energies of nuclei compiled in AME2016 database.The advantage of this approach is that we can remove the pairing energy term $P_{A}$ caused by odd-even variation, and the mass excess $M(A,Z_{A})$ of the most stable nuclide for mass number $A$ in the performance process, which are used in the mass parabolic fitting method. The Coulomb energy coefficient $a_{c}=0.6910$ MeV is determined by the mass difference relation of mirror nuclei, and the symmetry energy coefficient is also studied by the relation $a_{\rm sym}(A)=0.25b_{A}Z_{A}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑