Shape coexistence and α-decay chains of 293Lv |
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| Affiliation: | 1. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China2. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China3. Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China |
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| Abstract: | Two recently observed 293Lv (Z = 116) α-decay chains [Eur. Phys. J. A 48, 62 (2012)] are investigated in the framework of covariant density functional theory with PC-PK1, where the pairing correlations are treated by the Bardeen–Cooper–Schrieffer method with a density-independent zerorange force. From the calculated potential energy curves, it is found that two minima always occur, with one having an almost spherical shape and the other exhibiting a large deformed prolate shape. Originating from the ground state and the shape-isomeric state of 293Lv, the two observed α-decay chains are constructed and the calculated Qαvalues are found to be in good agreement with the data. |
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| Keywords: | shape coexistence α decay 293Lv covariant density functional theory |
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