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摘要: 在本工作中,我们主要研究了101Pd核中
$ \nu_{11/2} $ 带的能级结构,并与临近同位素相对应的能级结构进行了对比。研究发现在Pd同位素链,即$ N\!= \!Z\! =\! 50 $ 的壳附近,三轴形变的演变符合很好的系统性,即从小的不稳定形变逐渐演变为稳定的长椭形变。同时,我们也做了总势能面(TRS)随着原子核转动频率以及中子数变化的系统计算,结果也支持该核区不稳定三轴形变演化的规律。Abstract: The present work aims at the structural investigation of the$\gamma-$ levels in$\nu h_{11/2}$ band of 101Pd, and its comparison with the neighboring Pd-isotopes. Theoretical investigations performed in the vicinity of Pd-isotopes i.e., around$N\!=\!Z\!=\!50$ shell closures have described the systematic well, indicating an evolution of shape alongwith involvement of triaxiality. The deformation studies in the vicinity of Pd-isotopes around shell closures have predicted the shape change from small deformation to more deformed prolate shapes. The comparison of Total Routhian Surface (TRS) calculations performed in the present work have also suggested the inclusion of small amount of triaxiality as a function of increasing rotational frequency and neutron number, pointing towrads the$\gamma-$ softness present in the nuclei.-
Key words:
- Pd-isotopes /
- R4/2 (E4+/E2+) /
- deformation /
- antimagnetic rotation /
- shears mechanism
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Figure 1. (color online)(a) The reproduced partial level scheme relevant for the present work has been taken from the Ref. [21]. In figure (b), the pictorial representation for the generation of angular momentum has been shown as a function of increasing level energy and spin of the level states, in
$\nu h_{11/2}$ band of 101Pd. The$\vartheta$ values in between the proton and neutron blades have been also taken from the Ref. [21].Figure 2. (color online)The deformation (same scaling has been used on left as well as right of
$y-$ axis) is plotted with increasing neutron number for Pd- isotopes (lower). In the upper figure, the deformation is plotted in the vicinity of$N \!= \!Z\! =\! 50$ shell closures. The deformation values are taken from the Atomic Data and Nuclear Tables 2016[33]. The experimentally observed$\beta_2$ values for 101Pd and 103Pd for the${15/2}^-$ state are taken from the Refs. [34-35] respectively.Figure 3. (color online)The ratio of
${E_4^+}/{E_2^+}$ (scaled on left of$y-$ axis) are plotted with increasing neutron number for even-A Pd-isotopes (black color) and$E_{19/2^-}/E_{15/2^-}$ (scaled on right of$y-$ axis) for odd-A Pd-isotopes (red color)[38]. On both sides of the figure, same scaling has been used as labelled on left of$y-$ axis. -
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Structural Investigation in 101Pd and Comparison in Its Vicinity
doi: 10.11804/NuclPhysRev.37.2019CNPC17
- 收稿日期: 2019-12-18
- 修回日期: 2020-03-30
- 网络出版日期: 2020-09-30
- 刊出日期: 2020-09-20
摘要: 在本工作中,我们主要研究了101Pd核中
English Abstract
Structural Investigation in 101Pd and Comparison in Its Vicinity
- Received Date: 2019-12-18
- Rev Recd Date: 2020-03-30
- Available Online: 2020-09-30
- Publish Date: 2020-09-20
Abstract: The present work aims at the structural investigation of the
引用本文: | AmanRohilla, 李广顺, 王建国, 柳敏良, 周小红, 郭松, 强赟华, 丁兵, 侯东升, 黄山. 101Pd的能级结构研究以及与其邻近核素的系统性对比[J]. 原子核物理评论, 2020, 37(3): 542-547. doi: 10.11804/NuclPhysRev.37.2019CNPC17 |
Citation: | Rohilla Aman, Guangshun LI, Jianguo WANG, Minliang LIU, Xiaohong ZHOU, Song GUO, Yunhua QIANG, Bing DING, Dongsheng HOU, Shan HUANG. Structural Investigation in 101Pd and Comparison in Its Vicinity[J]. Nuclear Physics Review, 2020, 37(3): 542-547. doi: 10.11804/NuclPhysRev.37.2019CNPC17 |