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Chiral doublet bands and energy-level crossing

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【Author】 QI Bin1 MENG Jie1,2,3,6;1) ZHANG Shuang-Quan1,2 WANG Shou-Yu4 PENG Jing5 1 (School of Physics,and SK Lab. of Nucl. Phys. & Tech., Peking University, Beijing 100871, China) 2 (Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China) 3 (Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China) 4 (Department of Space Science and Applied Physics, Shandong University at Weihai, Weihai 264209, China) 5 (Department of Physics, Beijing Normal University, Beijing 100875, China) 6 (Department of Physics, University of Stellenbosch, Stellenbosch, South Africa)

【机构】 School of Physics,and SK Lab. of Nucl. Phys. & Tech., Peking University； Institute of Theoretical Physics, Chinese Academy of Sciences； Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator； Department of Physics, University of Stellenbosch, Stellenbosch, South Africa； Department of Space Science and Applied Physics, Shandong University at Weihai； Department of Physics, Beijing Normal University；

【摘要】 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.更多还原

【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.更多还原

【关键词】 chiral doublet bands； band definition； electromagnetic transition； energy-level crossing； triaxial particle rotor model；
【Key words】 chiral doublet bands； band definition； electromagnetic transition； energy-level crossing； triaxial particle rotor model；

【基金】 Supported by National Natural Science Foundation of China (10505002, 10435010, 10605001, 10221003);Postdoctoral Science Foundation of China (20060390371)

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2009年S1期

【分类号】O571
【被引频次】1
【下载频次】23

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