High-K Isomers in Light Superheavy Nuclei by PNC-CSM method
College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Published online: 16 May 2018
The high-K isomeric states in light superheavy nuclei around A = 250 mass region are investigated by the Cranked Shell Model (CSM) with pairing treated by a Particle-Number Conserving (PNC) method. With including the higher-order deformation ε6, both of the high–K multi-particle state energies and the rotational bands in 254No and N = 150 isotone are reproduced well. The isomeric state energies and the microscopic mechanism of kinematic moment of inertia variations versus rotational frequency are discussed. The irregularity of the two-neutron Kπ = 8- state band at ħω ≈ 0:17 in 252No is caused by the configuration mixing with the two-proton Kπ = 8- band. .
© The Authors, published by EDP Sciences, 2018
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