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arXiv 2104.06238nucl-th
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核景观的富中子边缘。实验和理论

The Neutron-Rich Edge of the Nuclear Landscape. Experiment and Theory

Frédéric Nowacki, Alexandre Obertelli, Alfredo Poves

摘要:

本文综述了使极端丰中子核的产生和测量成为可能的实验设备和方法。然后,我们开发的理论框架,将伴随着我们沿着审查;壳模型的方法与大尺度组态相互作用(混合)SM-CI,特别强调在球平均场和核关联(主要是配对和四极-四极)之间的竞争。后者的对称性进行了详细的处理,因为它们将被证明是很大的启发式价值。我们详细探讨了N=20和N=28时的反转岛(IoI)。我们对较重的钙和钾同位素做了一个侧面的探索,讨论了当前关于壳层演化和远离稳定性的新幻数的问题。我们参观了N=40的反转岛。我们讨论了双魔核78 Ni,它的形状共存和一个新的IoI在N=50低于Z=28的前景。我们检查了接近中子滴线的N=70和N=82中子罩。

英文摘要:

In this review, we describe the experimental facilities and methods which make it possible to produce and measure the properties of the extreme neutron rich nuclei. We then develop the theoretical framework that will accompany us along the review; the shell-model approach with large scale configuration interaction (mixing) SM-CI, with special emphasis in the competition between the spherical mean field and the nuclear correlations (mainly pairing and quadrupole-quadrupole). The symmetry properties of the latter are treated in detail as they will show to be of great heuristic value. We explore in detail the Islands of Inversion (IoI) at N=20 and N=28. We make a side excursion into the heavier Calcium and Potassium isotopes, to discuss current issues on shell evolution and new magic numbers far from stability. We visit the N=40 Island of Inversion. We discuss the doubly magic nucleus 78Ni, its shape coexistence and the prospect of a new IoI at N=50 below Z=28. We examine the N=70 and N=82 neutron closures approaching the neutron drip line.

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。

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