High-spin states and possible chirality in odd-odd Ag110
| العنوان: | High-spin states and possible chirality in odd-odd Ag110 |
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| المؤلفون: | Dapeng Yang, Shiyong Liu, H. C. Zhang, Xingang Guan, Hao-Nan Pan, Jingcai Lu, Yong-Liang Ma, Cong-Bo Li, Xiaoguang Wu, Yuanjie Zheng, Jia-Qi Wang, Hui-Dong Wang, Ke-Yan Ma, Qing-Yu Yang |
| المصدر: | Physical Review C. 103 |
| بيانات النشر: | American Physical Society (APS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, Proton, Spin states, 010308 nuclear & particles physics, Degenerate energy levels, 01 natural sciences, 0103 physical sciences, Quasiparticle, Atomic physics, 010306 general physics, Chirality (chemistry), Beam energy, Magnetic dipole, Excitation |
| الوصف: | High-spin states of $^{110}\mathrm{Ag}$ have been studied by in-beam $\ensuremath{\gamma}$-ray spectroscopic techniques using the fusion-evaporation reaction $^{110}\mathrm{Pd}$($^{7}\mathrm{Li}, \ensuremath{\alpha}3\mathrm{n}$)$^{110}\mathrm{Ag}$ at a beam energy of 46 MeV. The previously known level scheme of $^{110}\mathrm{Ag}$ is significantly extended and modified with the addition of 50 new $\ensuremath{\gamma}$ transitions and 21 new levels. In total, four new rotational bands are observed, among which two negative-parity coupled bands are assigned to the four-quasiparticle $\ensuremath{\pi}{g}_{9/2}^{\ensuremath{-}1}\ensuremath{\bigotimes}\ensuremath{\nu}{h}_{11/2}{({g}_{7/2}/{d}_{5/2})}^{2}$ configuration based on the quasiparticle alignment analysis and cranked shell model calculations. The properties of both bands show general agreement with the fingerprints of chiral rotation, and thus such two negative-parity bands are suggested to be candidates for near degenerate chiral doublet bands. A new decoupled $\mathrm{\ensuremath{\Delta}}I=2$ band decaying directly to the yrast band is established, and probably results from one-particle-one-hole (1p-1h) proton excitation from the ${g}_{9/2}$ orbital to the ${g}_{7/2}$ orbital across the large $Z=50$ shell gap, i.e., the 2p2h $\ensuremath{\pi}{g}_{9/2}^{\ensuremath{-}2}{g}_{7/2}\ensuremath{\bigotimes}\ensuremath{\nu}{h}_{11/2}$ configuration. In addition to, a weak positive-parity sequence consisting of magnetic dipole $(M1)$ and no $E2$ crossover transitions is also identified in the present work. |
| تدمد: | 2469-9993 2469-9985 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c380fdbd824b64ee0a7a5e533a3603c2 https://doi.org/10.1103/physrevc.103.024302 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........c380fdbd824b64ee0a7a5e533a3603c2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699993 24699985 |
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