Shape Coexistence in Neutron-Deficient At Isotopes in Relativistic Mean-Field Model  

作　　者：LIANG Jun 

机构地区：[1]China Institute of Atomic Energy, Beijing 102413, China [2]Department of Physics, University of Technology of Taiyuan, Taiyuan 030024, China [3]Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

出　　处：《Communications in Theoretical Physics》2007年第4X期705-709,共5页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China under Grant Nos. 10475116, 10535010, and 10235030, and Asia-Europe Link in Nuclear Physics and Astrophysics under Grant No. CN/ASIA-LINK/008 （094-791） and by Major State Basic Research Development Program of China under Grant No. 2007CB815000

摘　　要：The potential energy surfaces are calculated for neutron-deficient At isotopes from A - 190 to 207 in an axially deformed relativistic mean-field approach, using a quadratic constraint scheme for the first time. We find several minima in the potential energy surface for each nucleus, shape-coexistence, and quadratic deform are discussed.

关 键 词：shape-coexistence relativistic mean-field theory deformation constrained calculation potentialenergy surface 

分 类 号：O412.1[理学—理论物理]