Connecting the proxy-SU(3) symmetry to the shell model
Dennis Bonatsos, Andriana Martinou, I. E. Assimakis, S. K. Peroulis, S. Sarantopoulou, N. Minkov
备注:
6 pages, 1 figure, 5 tables, HINP 6th International Workshop; Perspectives on Nuclear Physics: from Fundamentals to Applications (online, May 14-16, 2021)
Proxy-SU(3) symmetry is an approximation scheme extending the Elliott SU(3) algebra of the sd shell to heavier shells. When introduced in 2017, the approximation had been justified by calculations carried out within the Nilsson model. Recently our group managed to map the cartesian basis of the Elliott SU(3) model onto the spherical shell model basis, proving that the proxy-SU(3) approximation corresponds to the replacement of the intruder orbitals by their de Shalit-Goldhaber partners, paving the way for using the proxy-SU(3) approximation in shell model calculations. The connection between the proxy-SU(3) scheme and the spherical shell model has also been worked out in the original framework of the Nilsson model, with identical results.
J. P. Elliott在sd核壳层中实现的SU(3)对称性在较重壳层中被强的自旋-轨道相互作用破坏。另一方面,SU(3)对称性已经被用于在相互作用玻色子近似的框架下用玻色子来描述重核,以及在赝SU(3)近似下用费米子来描述重核。最近提出了一种新的费米子近似,称为proxy-SU(3),并将其应用于偶数稀土。我们表明,proxy-SU(3)的适用性可以推广到28-50质子壳层的偶核、偶超重元素以及奇-奇和奇稀土。的β和γ变形参数的参数预测和替代的理论预测和现有的数据进行比较。
J. P. Elliott在sd核壳层中实现的SU(3)对称性在较重壳层中被强的自旋-轨道相互作用破坏。然而,SU(3)对称性已经被用于在相互作用玻色子近似的框架下用玻色子来描述重核,以及使用伪SU(3)近似来描述费米子。我们介绍了一种新的费米子近似,称为代理SU(3),我们评论的相似性和差异与其他方法。
J. P. Elliott在sd核壳层中实现的SU(3)对称性在较重壳层中被强的自旋-轨道相互作用破坏。然而,SU(3)对称性已经被用于在相互作用玻色子近似的框架下用玻色子来描述重核,以及使用伪SU(3)近似来描述费米子。我们引入了一种新的费米子近似,称为代理SU(3),我们讨论了它的一些新的预测是如何作为核子-核子相互作用的短程和泡利原理的结果。
Parameter-free deformation variables of the proxy-SU(3) symmetry in even-even atomic nuclei with Z=28-82, N=28-126
National Centre for Scientific Research “Demokritos”(德谟克利特国家科学研究中心);Physical Research Laboratory(物理研究实验室);Aristotle University of Thessaloniki(塞萨洛尼基亚里士多德大学);Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering(霍里亚·胡利贝伊核物理与核工程研发国家研究所);National and Kapodistrian University of Athens(雅典国立卡波季斯特里亚斯大学);Bulgarian Academy of Sciences(保加利亚科学院)
Parameter-free deformation variables of the proxy-SU(3) symmetry in even-even actinide, superheavy and hyperheavy nuclei with Z=82-126, N=82-258
National Centre for Scientific Research “Demokritos”(德谟克利特国家科学研究中心);Physical Research Laboratory(物理研究实验室);Aristotle University of Thessaloniki(塞萨洛尼基亚里士多德大学);Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering(霍里亚·胡卢贝伊核物理与核工程研发国家研究所);National and Kapodistrian University of Athens(雅典国立卡波季斯特里安大学);Bulgarian Academy of Sciences(保加利亚科学院)