Investigation of multiple anti-magnetic rotational bands in \(^{106}\)Cd

IF 2.6 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-03-27 DOI:10.1140/epja/s10050-025-01525-5

Diwanshu, Ashok Kumar, Bharti Rohila, Chetan Sharma, Subodh, Ishika Sharma, P. S. Rawat, Anand Pandey, Kaushik Katre, H. Arora, U. S. Ghosh, Yashraj, C. Majumder, H. P. Sharma, S. K. Chamoli, S. Kumar, S. Muralithar, R. P. Singh

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Abstract

Lifetimes of excited states of positive and negative parity \(\Delta \)I = 2 bands of \(^{106}\)Cd have been measured using the Doppler Shift Attenuation Method (DSAM). The electric quadrupole reduced transition probability rates, B(E2), show a significant decreasing trend with increasing spin along with large observed \(\Im ^{(2)}\)/B(E2) values. The experimental observations, interpreted in the framework of semiclassical particle-rotor model (SCM) calculations, suggest that these bands have the character of twin-shears type anti-magnetic rotational bands resulting from the coupling of g\(_{9/2}\) proton holes with h\(_{11/2}\), g\(_{9/2}\) and d\(_{5/2}\) neutron particles. Another negative-parity band in the same nucleus has been studied using SCM, which also interprets it to be an anti-magnetic rotational band.

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\(^{106}\) Cd中多个抗磁旋转带的研究

利用多普勒频移衰减法（DSAM）测量了\(^{106}\) Cd的正、负宇称\(\Delta \) I = 2波段的激发态寿命。电四极简化跃迁概率率B（E2）随自旋的增加呈显著下降趋势，且观测到\(\Im ^{(2)}\) /B（E2）值较大。在半经典粒子-转子模型（SCM）计算框架下解释的实验结果表明，这些带具有双剪切型反磁旋转带的特征，这是由g \(_{9/2}\)质子空穴与h \(_{11/2}\)、g \(_{9/2}\)和d \(_{5/2}\)中子粒子耦合产生的。用单片机研究了同一原子核中的另一个负宇称带，也将其解释为一个反磁旋转带。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal A 物理-物理：核物理

CiteScore

5.00

自引率

18.50%

发文量

216

审稿时长

3-8 weeks

期刊介绍： Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.