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首页> 外文期刊>Physics of atomic nuclei >Delayed Multineutron Emission in the Region of Heavy Calcium Isotopes
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Delayed Multineutron Emission in the Region of Heavy Calcium Isotopes

机译：延迟钙同位素区域中的多线程发射

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A brief survey of self-consistent models used to perform global calculations of -decay properties of neutron-rich nuclei is given. These models include the continuum quasiparticle randomphase approximation (CQRPA) based on the energy density functional (DF) proposed by Fayans and his colleagues (DF + CQRPA), relativistic quasiparticle random-phase approximation (RQRPA), and the finite-amplitude method (FAM). These models take into account allowed Gamow-Teller transitions and first-forbidden transitions. Models that allow for complex configurations beyond the QRPA framework are also analyzed. The -decay properties of heavy calcium, potassium, and scandium isotopes in the vicinity of the N = 32 and 34 neutron subshells, which are new magic subshells for neutrons, are calculated on the basis of the self-consistent DF + CQRPA approach. The predicted high probability for two-neutron emission is found to be correlated with the anomalous nuclear radii measured for potassium and calcium isotopes in the region around N = 32. The results ofDF3 + CQRPA calculations are compared with their counterparts obtained within the self-consistent models implemented with the SkO' Skyrme functional and the D3C* relativistic functional.
机译：给出了对用于执行富含中子核的全局计算的自我一致模型的简要调查。这些模型包括基于烟草和他的同事（DF + CQRPA），相对论Quasiparticle随机相近似（RQRPA）和有限幅度方法（FAM ）。这些模型考虑到允许的Gamow-Teller转换和首先禁止过渡。还分析了允许超出QRPA框架的复杂配置的模型。在N = 32和34中子壳附近的重质钙，钾和钪同位素的-decay属性，这是基于自我一致的DF + CQRPA方法计算新的魔术子壳。发现预测的两个中子发射的高概率与在N = 32周围的区域中测量的钾和钙同位素测量的异常核·半径相关。将结果与其在自我统一中获得的对应物进行比较用Sko'Skyrme功能和D3C *相对型功能实现的模型。

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