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《Nuclear Physics Review》 2014-03
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Theoretical Study of Structure and Synthesis Mechanism of Superheavy Nuclei

LI Lulu;L Bingnan;WANG Nan;WEN Kai;XIA Chengjun;ZHANG Zhenhua;ZHAO Jie;ZHAO Enguang;ZHOU Shangui;Institute of Applied Physics and Computational Mathematics;State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics,Chinese Academy of Sciences;College of Physical Science and Technology, Shenzhen University;School of Physics, University of Chinese Academy of Sciences;State Key Laboratory of Nuclear Physics and Technology, School of Physics,Peking University;Mathematics and Physics Department, North China Electric Power University;Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator;Center for Nuclear Matter Science, Central China Normal University;  
The exploration of charge and mass limits of atomic nuclei and the synthesis of long-lived or stable superheavy nuclei(SHN) are on the frontier of modern nuclear physics. Recent theoretical progresses made by us on the study of structure and synthesis mechanism of SHN are reviewed. The study of structure properties includes a systematic study of low-lying spectra of actinide and transfermium nuclei by using a cranked shell model with the pairing treated by a particle number conserving method(PNC-CSM), the study of potential energy surfaces and fission barriers of actinide nuclei and non-axial octupole correlations in N = 150 isotones by using newly-developed multi-dimensional constraint covariant density functional theories(MDCCDFT). The study of the synthesis mechanism of SHN is carried out by examining in details of the three steps in producing SHN via heavy-ion fusion reactions: i) For the capture process, a new barrier penetration formula is proposed for potential barriers containing a long-range Coulomb interaction; ii) For the fusion process, a dinuclear system model with a dynamical potential energy surface(the DNS-DynPES model) is developed; and iii) For the survival process, a systematic study of the survival probability against fission in the 1n-channel of SHN with 100 Z 134 is made and it is found that the survival probability in the 1n-channel is mainly determined by the nuclear shell effects. By using the DNS-DynPES model, hot fusion reactions for synthesizing SHN with charge numbers Z = 112 ~ 120 are studied. The calculated evaporation residue cross sections are in good agreement with available data and predictions are made for synthesizing SHN with Z = 119 and 120.
【Fund】: 国家重点基础研究发展计划(973计划)项目(2013CB834400);; 国家自然科学基金项目(10975100 10979066 11121403 11175252 11105005 11120101005 11275098 11275248 11475115);; 中国科学院知识创新工程重要方向项目(KJCX2-EW-N01)~~
【CateGory Index】: O571
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 ZHUANG Kai,LI Ze-Bo,and LIU Yu-Xin Department of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China;Rotational Property of~(249)Cm in Particle-Triaxial-Rotor Model[J];理论物理通讯(英文版);2012-02
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