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Chinese Physics C> 2016, Vol. 40> Issue(12) : 124103 DOI: 10.1088/1674-1137/40/12/124103

Electromagnetic transitions in multiple chiral doublet bands

  • 1.

     Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China

  • Multiple chiral doublet bands (MχD) in the 80, 130 and 190 mass regions are studied by the model of γ=90° triaxial rotor coupled with identical symmetric proton-neutron configurations. By selecting a suitable basis, the calculated wave functions are explicitly exhibited to be symmetric under the operator Â, which is defined as rotation by 90° about the 3-axis with the exchange of valance proton and neutron. We found that both M1 and E2 transitions are allowed between levels with different values of A, while they are forbidden between levels with same values of A. Such a selection rule holds true for MχD in different mass regions.
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Hui Jia, Bin Qi, Shou-Yu Wang, Shuo Wang and Chen Liu. Electromagnetic transitions in multiple chiral doublet bands[J]. Chinese Physics C, 2016, 40(12): 124103. doi: 10.1088/1674-1137/40/12/124103
Hui Jia, Bin Qi, Shou-Yu Wang, Shuo Wang and Chen Liu. Electromagnetic transitions in multiple chiral doublet bands[J]. Chinese Physics C, 2016, 40(12): 124103.  doi: 10.1088/1674-1137/40/12/124103 shu
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Received: 2016-07-01
Revised: 2016-09-02
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    Supported by National Natural Science Foundation of China (11675094, 11622540, 11545011, 11405096, 11461141001, U1432119), Shandong Natural Science Foundation (ZR2014AQ012), and Young Scholars Program of Shandong University, Weihai (2015WHWLJH01)

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Electromagnetic transitions in multiple chiral doublet bands

    Corresponding author: Shou-Yu Wang, bqi@sdu.edu.cn
  • 1. Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China
  • Received Date: 2016-07-01
  • Accepted Date: 2016-09-02
  • Available Online: 2016-12-05
Fund Project:  Supported by National Natural Science Foundation of China (11675094, 11622540, 11545011, 11405096, 11461141001, U1432119), Shandong Natural Science Foundation (ZR2014AQ012), and Young Scholars Program of Shandong University, Weihai (2015WHWLJH01)

Abstract: Multiple chiral doublet bands (MχD) in the 80, 130 and 190 mass regions are studied by the model of γ=90° triaxial rotor coupled with identical symmetric proton-neutron configurations. By selecting a suitable basis, the calculated wave functions are explicitly exhibited to be symmetric under the operator Â, which is defined as rotation by 90° about the 3-axis with the exchange of valance proton and neutron. We found that both M1 and E2 transitions are allowed between levels with different values of A, while they are forbidden between levels with same values of A. Such a selection rule holds true for MχD in different mass regions.

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