Chinese Physics C > 2002, Vol. 26 > Issue(8): 823-830

Description of the New Nuclide²⁵⁹Db and Its α-Decay Chain in Relativistic Mean Field Theory

School of Physics, Peking University, Beijing 100871, China2 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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Abstract：
The new nuclide ²⁵⁹Db and its α decay chain are systematically studied in the framework of the relativistic mean field (RMF) theory with NL3 and TM1 effective interactions. The nuclide ²⁵⁹Db and its α-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 ²⁵⁹Db and its α decay daughter nuclei are highly deformed. The α-decay energy Q _αfor different channel has been given and it seems that the ground state to ground state Q _αvalues from DRMF+BCS reproduce the data well. Furthermore the single particle levels of the α decay chain are studied carefully and the explanation for the stability is also presented.

References

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LONG Wen-Hui, MENG Jie and ZHOU Shan-Gui. Description of the New Nuclide ²⁵⁹Db and Its α-Decay Chain in Relativistic Mean Field Theory[J]. Chinese Physics C, 2002, 26(8): 823-830.

LONG Wen-Hui, MENG Jie and ZHOU Shan-Gui. Description of the New Nuclide ²⁵⁹Db and Its α-Decay Chain in Relativistic Mean Field Theory[J]. Chinese Physics C, 2002, 26(8): 823-830. shu

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Received: 2001-09-27
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Description of the New Nuclide²⁵⁹Db and Its α-Decay Chain in Relativistic Mean Field Theory

Corresponding author:LONG Wen-Hui,

School of Physics, Peking University, Beijing 100871, China2 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

Received Date:2001-09-27
Accepted Date:1900-01-01
Available Online:2002-08-05

Abstract:The new nuclide²⁵⁹Db and its α decay chain are systematically studied in the framework of the relativistic mean field (RMF) theory with NL3 and TM1 effective interactions. The nuclide²⁵⁹Db and its α-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 nuclide²⁵⁹Db and its α decay daughter nuclei are highly deformed. The α-decay energy Q_αfor different channel has been given and it seems that the ground state to ground state Q_αvalues from DRMF+BCS reproduce the data well. Furthermore the single particle levels of the α decay chain are studied carefully and the explanation for the stability is also presented.