Chiral doublet bands and energy-level crossing |
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| Affiliation: | School of Physics;and SK Lab. of Nucl. Phys. & Tech.;Peking University;Beijing 100871;China;Institute of Theoretical Physics;Chinese Academy of Sciences;Beijing 100080;China;Center of Theoretical Nuclear Physics;National Laboratory of Heavy Ion Accelerator;Lanzhou 730000;China;Department of Space Science and Applied Physics;Shandong University at Weihai;Weihai 264209;China |
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| Abstract: | Different definitions for chiral doublet bands based on excitation energies, B(E2) and B(M1) respectively are discussed in the triaxial particle rotor model. For the ideal chiral geometry, the selection rules of the electromagnetic transitions in different band definitions are illustrated. It is also shown that the energy-level crossings between chiral doublet bands may occur. |
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| Keywords: | chiral doublet bands band definition electromagnetic transition energy-level crossing triaxial particle rotor model |
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