Systematical Studies on α Decay Half-Lives for Superheavy Nuclei  

作　　者：ZHANG Di-da,CHEN Bao-qiu,MA Zhong-yu 

出　　处：《Annual Report of China Institute of Atomic Energy》2009年第1期157-157,共1页中国原子能科学研究院年报（英文版）

基　　金：Supported by National Natural Science Foundation of China(10875150,10775183,10535010);Major State Basic Research Development Programme of China (2007CB815000)

摘　　要：We perform systematical evaluations of the α decay half lives for 317 nuclei in the area of Z=102-120 in the preformed cluster model (PCM) in order to investigate the dependence of α decayWe perform systematical evaluations of the α decay half lives for 317 nuclei in the area of Z=102-120 in the preformed cluster model （PCM） in order to investigate the dependence of α decay half lives on the theoretical Q values for super heavy nuclei （SHN）. The nuclear potentials between the particle and the daughter nuclei are obtained in a double folding （DF） model. In DF the M3Y effective interaction supplemented by a zero-range pseudo-potential for the single nucleon exchange are adopted due to its microscopic nature. The angular momentum transfers are not taken into accotmt with the assumption of zero angular momentum transfers in the decay process and the spherical charge distribution for coulomb potential is adopted in this work.

关 键 词：原子核衰变 半衰期 系统 超重核 角动量转移 超重原子核 微观性质 电荷分布 

分 类 号：O571.323[理学—粒子物理与原子核物理] O571.3[理学—物理]