Ground State Properties of New Element Z = 113 and Its Alpha Decay Chain

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2005,（4）
• 页码范围: 843-845
• 页数: 3页
• 语种: 英文

摘要

We investigate the ground state properties of the new element 278113 and of the α-decay chain with different models, where the new element Z = 113 has been produced at RIKEN in Japan by cold-fusion reaction [Morita et al.J.Phys.Soc.Jpn.73 (2004) 2593].The experimental decay energies are reproduced by the deformed relativistic mean-field model, by the Skyrme-Hartree-Fock (SHF) model, and by the macroscopic-microscopic model.Theoretical half-lives also reasonably agree with the data.Calculations further show that prolate deformation is important for the ground states of the nuclei in the α-decay chain of 278113.The common points and differences among different models are compared and discussed.