论文标题

原子核中的代理-SU(3)对称性

The proxy-SU(3) symmetry in atomic nuclei

论文作者

Bonatsos, Dennis, Martinou, Andriana, Peroulis, S. K., Mertzimekis, T. J., Minkov, N.

论文摘要

回顾了原子核代理(3)对称模型的微观起源和最新预测。从具有最大空间重叠的Nucleon对发挥的特殊作用的实验证据开始,引入了代理SU(3)近似方案,并通过Nilsson模型计算以及与球形壳模型的联系来证明其有效性。指出了SU(3)在塑造核性质中最高重量不可还能表现的主要作用,从而导致无参数的预测集体变量beta和伽马为偶发的核,以解释均匀构图的统一形式,从而在底层构图中的统治状态,以预测的形式/均匀的形式,从而构成了构图,从而构成了构图,这是一个阶段/均等的构图。壳以及在核图表上特定岛屿的预测中,形状共存被限制。概述了代理SU(3)方案中的进一步发展。

The microscopic origins and the up-to-now predictions of the proxy-SU(3) symmetry model of atomic nuclei are reviewed. Starting from the experimental evidence for the special role played by nucleon pairs with maximal spatial overlap, the proxy-SU(3) approximation scheme is introduced and its validity is demonstrated through Nilsson model calculations, as well as through its connection to the spherical shell model. The major role played by highest weight irreducible representations of SU(3) in shaping up the nuclear properties is pointed out, resulting in parameter-free predictions of the collective variables beta and gamma for even-even nuclei, in the explanation of the dominance of prolate over oblate shapes in the ground states of even-even nuclei, in the prediction of a shape/phase transition from prolate to oblate shapes below closed shells, as well as in the prediction of specific islands on the nuclear chart in which shape coexistence is confined. Further developments within the proxy-SU(3) scheme are outlined.

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