论文标题
新观察到的39NA对中子滴线的限制
Constraints on the neutron drip-line with the newly observed 39Na
论文作者
论文摘要
最近观察到的弱结合的39na对中子滴度线提供了严格的理论约束。我们通过Hartree-fock-Bogoliubov方法和各种Skyrme相互作用研究了39NA左右的滴管核的性质。我们采用了扩展的SKM*-EXT1参数化，该参数化可以正确地描述“反转岛”的中心的氧和氟同位素的两种独立分离能和变形。已经进行了O，F，NE，NA，MG和Al同位素的滴水线的系统计算。我们推断出42mg是弱结合的，而45AL的结合较小。几乎不存在44mg和47al。我们还证明了39NA的变形光环特性。我们的研究对于即将到来的FRIB和其他稀有异位束设施中滴管线核的实验探索可能很有价值。
The recently observed weakly-bound 39Na provides a stringent theoretical constraint on the neutron drip-line. We studied the properties of drip-line nuclei around 39Na with the Hartree-Fock-Bogoliubov method and various Skyrme interactions. We adopted the extended SkM*-ext1 parameterization which can properly describe two-neutron separation energies of oxygen and fluorine isotopes and deformations at the center of the "island of inversion". Systematic calculations of drip lines of O, F, Ne, Na, Mg, and Al isotopes have been performed. We infer that 42Mg is weakly bound and 45Al is less weakly bound. 44Mg and 47Al could be barely existed. We also demonstrated the deformed halo properties of 39Na. Our studies could be valuable for experimental explorations of drip-line nuclei in the forthcoming FRIB and other rare-isotope beam facilities .
