Peking Univ, Sch Phys, Beijing 100871, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
The new nuclide (259) Db and its alpha-decay chain are systematically studied in the framework of the relativistic mean field (RMF) theory with NL3 and TM1 effective interactions. The nuclide (259) Db and its alpha-decay daughter nuclei are calculated in a RMF framework with and without the pairing correlation. With the pairing gaps obtained from the RCHB, the deformed RMF + BCS has been carried out for these nuclei. It has been found that the DRMF + BCS well reproduces the data and implies that the new nuclide (259) Db and its alpha decay daughter nuclei are highly deformed. The alpha-decay energy Q(alpha) for different channel has been given and it seems that the ground state to ground state Q(alpha) values from DRMF + BCS reproduce the data well. Furthermore the single particle levels of the alpha decay chain are studied carefully and the explanation for the stability is also presented.
Long, WH,Meng, J,Zhou, SG. Description of the new nuclide (259)Db and its alpha-decay chain in relativistic mean field theory[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2002,26(8):823-830.