论文标题
使用微观互动的$^{20-31} $ na同位素的结构和半径研究
Study of structure and radii for $^{20-31}$Na isotopes using microscopic interactions
论文作者
论文摘要
在这项工作中，使用DJ16A，JISP16和N3LO显微镜有效相互作用在$ SD $ shell中研究了质量的NA同位素从$ a = $ 20到31不等。这些有效的相互作用是使用无核壳模型波函数和单一转换方法的$ SD $ shell得出的。我们还使用针对特定核的IMSRG有效相互作用进行了计算。研究包括对基态结合能，低洼光谱以及电磁特性的详细分析，例如NA链中的四极杆跃迁强度，四极管和磁偶极矩。将这些显微镜有效相互作用获得的结果与实验数据以及现象学相互作用USDB的结果进行了比较。使用壳模型谐波振荡器波函数评估Na同位素的电荷半径。除了电荷半径外，还讨论了Na链中的物质半径和中子皮肤厚度，重点是中子缺陷型Na同位素。
In this work, Na isotopes with mass varying from $A=$ 20 to 31 have been studied using DJ16A, JISP16 and N3LO microscopic effective interactions in the $sd$-shell. These effective interactions are derived for $sd$-shell using no-core shell model wavefunctions and a unitary transformation method. We have also performed calculation with IMSRG effective interactions targeted for a particular nucleus. The studies include a detailed analysis of ground state binding energy, low-lying spectra, and electromagnetic properties such as reduced electric quadrupole transition strengths, quadrupole and magnetic dipole moments of the Na chain. The results obtained from these microscopic effective interactions were compared with the experimental data as well as with the results of phenomenological interaction USDB. The charge radii of Na isotopes are evaluated using shell model harmonic oscillator wave functions. In addition to charge radii, matter radii and neutron skin thickness in the Na chain are discussed with a focus on neutron-deficient Na isotopes.
