Description of New Element Z=113 and Its α-Decay Chain

TAI Fei; CHEN Ding-Han; XU Chang; REN Zhong-Zhou

Chinese Physics C> 2005, Vol. 29> Issue(5) : 439-441

Description of New Element Z=113 and Its α-Decay Chain

Department of Physics,Nanjing University,Nanjing210008,China2 Center of Theoretical Nuclear Physics,National Laboratory ofHeavy-Ion Accelerator,Lanzhou 730000,China

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Abstract：
RIKEN has produced the new element Z=113 by cold-fusion reaction. Here we systematically study the new nuclide ²⁷⁸113 and its α-Decay chain using deformed relativistic mean-field theory with three sets of force parameters,TMA,NL-Z2 and NL3.The results are compared with those of the Skyrme-Hartree-Fock model, Moller et al and also with the new experimental data. The experimental decay energies are well reproduced with RMF.This not only shows the alidity of self-consistent field theoretical model in researching the ground state properties of superheavy nuclei, but also shows that prolate deformation is important for the ground state of these nuclei.

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TAI Fei, CHEN Ding-Han, XU Chang and REN Zhong-Zhou. Description of New Element Z=113 and Its α-Decay Chain[J]. Chinese Physics C, 2005, 29(5): 439-441.

TAI Fei, CHEN Ding-Han, XU Chang and REN Zhong-Zhou. Description of New Element Z=113 and Its α-Decay Chain[J]. Chinese Physics C, 2005, 29(5): 439-441. shu

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Received: 2004-10-28
Revised: 1900-01-01

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