%A Zhao-Xi Li(李兆玺), Zhen-Hua Zhang(张振华), Peng-Wei Zhao(赵鹏巍) %T Shape coexistence and α-decay chains of 293Lv %0 Journal Article %D 2015 %J Front. Phys. %J Frontiers of Physics %@ 2095-0462 %R 10.1007/s11467-015-0474-0 %P 102101-${article.jieShuYe} %V 10 %N 3 %U {https://journal.hep.com.cn/fop/EN/10.1007/s11467-015-0474-0 %8 2015-06-11 %X

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.