Ground State Structure of Hs Super-heavy Isotopes  

作　　者：MA Long1,ZHOU Xiao-hong1,ZHANG Hong-fei2,GAN Zai-guo1, LI Jun-qing1,3 (1 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China 2 School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China 3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Research Facility in Lanzhou,Lanzhou 730000,China) 

出　　处：《原子核物理评论》2009年第S1期175-180,共6页Nuclear Physics Review

基　　金：National Natural Science Foundation of China(10475099,10505016,10775061);Knowledge Innovation Project of Chinese Academy of Sciences(KJCX2-SW-N17, KJCX3-SYW-N02);Major State Basic Research Development Pro-gram of China(2007CB815000)

摘　　要：The ground state properties of Hs nuclei studied in the framework of the relativistic mean field theory revealed that more stable isotopes are located on the proton abundant side of the chain. The last stable nucleus to the proton drip line is 256Hs. The most stable unknown Hs nucleus may be 268Hs. The density dependent delta interaction pairing is used to improve the BCS pairing correction,which results in more reasonable single-particle energy level distributions and nucleon occupation,and it is shown to be available to describe the properties of nuclei in the superheavy region.The ground state properties of Hs nuclei studied in the framework of the relativistic mean field theory revealed that more stable isotopes are located on the proton abundant side of the chain. The last stable nucleus to the proton drip line is 256Hs. The most stable unknown Hs nucleus may be 268Hs. The density dependent delta interaction pairing is used to improve the BCS pairing correction,which results in more reasonable single-particle energy level distributions and nucleon occupation,and it is shown to be available to describe the properties of nuclei in the superheavy region.

关 键 词：SUPERHEAVY NUCLEUS NUCLEAR STRUCTURE PAIRING 

分 类 号：O571.21[理学—粒子物理与原子核物理]