154Tb三轴性的形状转变与发展

IF 2.5 4区物理与天体物理 Q2 PHYSICS, NUCLEAR Nuclear Physics A Pub Date : 2025-03-01 Epub Date: 2025-01-14 DOI:10.1016/j.nuclphysa.2025.123019

N. Susshma , R. Gowrishankar , S. Deepa , K. Vijay Sai , S. Chatterjee , A. Sharma , S.S. Ghugre , Shabir Dar , S. Das , S. Basu , S. Nandi , S. Bhattacharya , S.S. Nayak , G. Mukherjee , S. Bhattacharyya , R.P. Singh , G.H. Bhat , J.A. Sheikh , S. Jehangir , R. Raut

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引用次数: 0

摘要

研究了154Tb核激发方案中已知的两个带内和带间跃迁的多极性和电/磁性质。在α-束诱导反应中填充了原子核的激发态，并利用康普顿抑制型HPGe三叶草探测器阵列检测了由此产生的γ射线。实验结果表明原子核的形状演化和高自旋下强三轴性的发展。带间跃迁的多极性带来了同样的结果。在三轴投影壳模型（TPSM）框架下进行了总鲁塞曲面（TRS）计算，结果证实了三轴性命题。

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Shape transition and development of triaxiality in 154Tb

Two previously known bands in the excitation scheme of the ¹⁵⁴Tb nucleus have been investigated for the multipolarity and the electric/magnetic nature of the intra- and inter-band transitions. The excited states of the nucleus were populated in an α-beam induced reaction and the γ-rays emitted therefrom were detected using an array of Compton suppressed HPGe clover detectors. The experimental findings are indicative of a shape evolution of the nucleus and development of strong triaxiality at higher spins. The multipolarities of the inter-band transitions brings forth the same. Total Routhian Surface (TRS) calculations and those in the framework of Triaxial Projected Shell Model (TPSM) have been carried out and the results corroborate the proposition on triaxiality.

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.