Ground State Properties of New Element Z=113 and Its Alpha Decay Chain
TAI Fei1, CHEN Ding-Han1, XU Chang1, REN Zhong-Zhou1,2
1Department of Physics, Nanjing University, Nanjing 210093
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000
Ground State Properties of New Element Z=113 and Its Alpha Decay Chain
TAI Fei1;CHEN Ding-Han1;XU Chang1;REN Zhong-Zhou1,2
1Department of Physics, Nanjing University, Nanjing 210093
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000
Abstract： 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.
TAI Fei;CHEN Ding-Han;XU Chang;REN Zhong-Zhou;. Ground State Properties of New Element Z=113 and Its Alpha Decay Chain[J]. 中国物理快报, 2005, 22(4): 843-845.
TAI Fei, CHEN Ding-Han, XU Chang, REN Zhong-Zhou,. Ground State Properties of New Element Z=113 and Its Alpha Decay Chain. Chin. Phys. Lett., 2005, 22(4): 843-845.
2005, Vol. 22 
