Alpha Decay Half-Lives of New Superheavy Elements through Quasimolecular Shapes
Alpha Decay Half-Lives of New Superheavy Elements through Quasimolecular Shapes作者机构：Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 Research Center of Nuclear Theory of Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 Graduate School of Chinese Academy of Sciences Beijing 100030 China Institute of Atomic Energy Beijing 102413 Laboratoire Subatech UMR: IN2P3/CNRS-Uniyersité-Ecole des Mines 4 rue A. Kastler 44307 Nantes Cedex 03 France
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2006年第23卷第7期
页 面：1734-1737页
核心收录：
学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程]
基 金：Supported by the Major State Basic Research and Development Programme of China under Contract No G2000077400 the National Natural Science Foundation of China under Grant Nos 10505016 10235020 10235030 10275094 10075080 and 10575119 the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX2-SW-N02 National Key Programme for Basic Research of the Ministry of Science and Technology under Grant Nos 2001CCB01200 and 2002CCB00200 and the DFG of Germany
主 题：LIQUID-DROP MODEL DEFORMED POTENTIAL-ENERGY HEAVIEST ELEMENTS CREVICEDSHAPES NUCLEI EMISSION FISSION CA-48 BARRIER COMPACT
摘 要：The lifetimes of a decays of the recently produced isotopes of the elements 112, 114, 116 and the element ^294118 and of some decay products have been calculated theoretically within the Wentzel-Kramers-Brillouin approximation. The a decay barriers have been determined in the quasimolecular shape path within a generalized liquid drop model including the proximity effects between nuclei in a neck, the mass and charge asymmetry and the precise nuclear radius. These calculations provide reasonable estimates for the observed a decay lifetimes. The calculated results have been compared with the results of the density-dependent M3Y effective interaction and the experimental data. It is indicated that the theoretical foundation of the generalized liquid drop model is as good as that of the microscopic DDM3Y model, at least in the sense of predicting the T1/2 values as long as one uses a correct a decay energy. The half lives of these new nuclei are well tested from the consistence of the macroscopic, the microscopic and the experimental data.
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