Examining the Chiral Geometry in A~100 Odd-Odd Nuclei

  • The criteria for chiral doublet bands obtained by assuming one proton (neutron) particle and one neutron (proton) hole sitting in a corresponding high-j shell coupled to a triaxial rotor with γ=30° have been summarized. Two representative cases in A~100 odd-odd nuclei, nearly degenerate ΔI=1 doublet bands in 104Rh and 106Rh are checked against these chiral criteria. It is shown that 106Rh possesses better chiral geometry than 104Rh, although the energy near degeneracy is achieved in 104Rh in comparison with the constant energy separation of doublet bands in 106Rh.
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WANG Shou-Yu, ZHANG Shuang-Quan, QI Bin and MENG Jie. Examining the Chiral Geometry in A~100 Odd-Odd Nuclei[J]. Chinese Physics C, 2006, 30(S2): 169-171.
WANG Shou-Yu, ZHANG Shuang-Quan, QI Bin and MENG Jie. Examining the Chiral Geometry in A~100 Odd-Odd Nuclei[J]. Chinese Physics C, 2006, 30(S2): 169-171. shu
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Received: 2006-10-18
Revised: 1900-01-01
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Examining the Chiral Geometry in A~100 Odd-Odd Nuclei

    Corresponding author: WANG Shou-Yu,
  • School of Physics, Peking University, Beijing 100871, China2 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator,Lanzhou 730000, China

Abstract: The criteria for chiral doublet bands obtained by assuming one proton (neutron) particle and one neutron (proton) hole sitting in a corresponding high-j shell coupled to a triaxial rotor with γ=30° have been summarized. Two representative cases in A~100 odd-odd nuclei, nearly degenerate ΔI=1 doublet bands in 104Rh and 106Rh are checked against these chiral criteria. It is shown that 106Rh possesses better chiral geometry than 104Rh, although the energy near degeneracy is achieved in 104Rh in comparison with the constant energy separation of doublet bands in 106Rh.

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