【摘 要】
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Systematic total Routhian surface calculations for even-even N=104 midshell isotones with 66≤Z≤82 have been carried out based on a more realistic diffuse-surf
【机 构】
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School of Physics and Engineering,Zhengzhou University, Zhengzhou 450001,China“,”Institute of Modern
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Systematic total Routhian surface calculations for even-even N=104 midshell isotones with 66≤Z≤82 have been carried out based on a more realistic diffuse-surface deformed Woods-Saxon nuclear potential in (β2,γ,β4) deformation space,focusing on the rotation-induced shape-coexisting phenomena. As an example and basic test, the oblate property at the ground state in 184Hg is well reproduced and the microscopic origin is analyzed from the single-particle structure.The present calculated results are compared with available experimental information,showing a good agree-ment. It is systematically found that in this isotonic chain several bands with different shapes(e.g.,prolate,oblate and superdeformed prolate bands,seven non-collective band)may show a strong competition and coexisting phenomenon at a certain domain of the rotational frequency.
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