Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques


Magnetic rotation in Rubidium-84

SHEN Shuifa1,2,3,4  HAN GuangbingWEN Shuxian6  YAN Yupeng2,3  WU Xiaoguang6  ZHU Lihua7  HE Chuangye6  LI Guangsheng6   

  1. 1Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, Anhui, China
    2School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    3Thailand Center of Excellence in Physics (ThEP), Commission on Higher Education, 328 Si Ayutthaya Road, Ratchathewi, Bangkok 10400, Thailand
    4State Key Laboratory of Nuclear Physics and Technology (Peking University), Beijing 100871, China
    5School of Physics, Shandong University, Jinan 250100, China
    6China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China 7School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
  • Received:2013-04-01
  • Contact: SHEN Shuifa
  • Supported by:

    Supported by Suranaree University of Technology (No. 15/2553), Major State Basic Research Development Program in China (No.2007CB815003), National Natural Science Foundation of China (Nos.10975190, 11065001, 10975019, 10675170, and 61067001) and Foundation of the Education Department of Jiangxi Province (No.GJJ12372)

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SHEN Shuifa, HAN Guangbing, WEN Shuxian, YAN Yupeng, WU Xiaoguang, ZHU Lihua, HE Chuangye, LI Guangsheng. Magnetic rotation in Rubidium-84.Nuclear Science and Techniques, 2013, 24(3): 030503     doi: 10.13538/j.1001-8042/nst.2013.03.002


High-spin states in 84Rb have been studied by using the 70Zn(18O, p3n)84Rb reaction at beam energy of 75 MeV. Three regular magnetic dipole bands including strong M1 and weak E2 transitions have been observed in this nucleus which shows the characteristic feature of magnetic rotation. These bands are interpreted in the projected shell model for the first time on the basis of the four-quasiparticle configuration of the type . It is shown that the calculated sequence lies roughly in the same energy range as the experimental one but the interval between neighboring levels is larger than the corresponding experimental value. We believe that a 4-quasiparticle band crossing with the 2-quasiparticle band will depress the energies of the states.


Key words: In-beam γ-spectroscopy, Magnetic dipole band, Projected shell model