Study of the high spin states of stable 84Sr

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作者：
Han, Guangbing
Wen, Shuxian
Liu, Xiangan
Wu, Xiaoguang
Li, Guangsheng
Yuan, Guanjun
Weng, Peikun
Yang, Chunxiang
Ma, Yingjun
Lu, Jingbin
机构：
[1] Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
[2] Department of Physics, Jilin University, Changchun 130023, China
来源：
Kao Neng Wu Li Yu Ho Wu Li/High Energy Physics and Nuclear Physics | 1999年 / 23卷 / 07期
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摘要：
High spin states of 84Sr were populated by bombarding 70Zn target with 75MeV 18O beam provided by HI-13 Tandem Accelerator of CIAE. γ-γ coincidences and DCO ratios were measured using eight anticompton Ge detectors and one planar. A new level scheme of 84Sr was established in which 12 new energy states and nearly 30 new γ-transitions were identified in present work. Level scheme was compared with its even-even isotopes 78,80,82,86Sr. It shows that 84Sr is a transitional nucleus, namely its ground state band exhibits a collective nature. The negative bands were extended to spin of 19- and the γ-transition energies take on the nature of stagger. The negative band levels are in good agreement with D. C. M. theory caculations.
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