Chinese Physics C > 2006, Vol. 30 > Issue(7): 616-619

A study of the pairing strength in the rare-earth nuclei

School of Science, Huzhou Teachers College, Huzhou 313000, China2 Institute of Modern Physics, Zhejiang University, Hangzhou 310000, China

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Abstract：
In the framework of relativistic mean-field theory, the strength of the pairing force is systematically studied for several isotope chains of rare-earth nuclei. It is shown, for the first time, that the pairing strength of the neutron, G _n, increases dramatically around the magic number N=82, while for the proton it is strongly related to the odd-even difference of the neutron number. The results indicate a strong correlation between the shell structure and the pairing force strength.

References

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DING Bin-Gang, ZHANG Da-Li and LU Ding-Hui. A study of the pairing strength in the rare-earth nuclei[J]. Chinese Physics C, 2006, 30(7): 616-619.

DING Bin-Gang, ZHANG Da-Li and LU Ding-Hui. A study of the pairing strength in the rare-earth nuclei[J]. Chinese Physics C, 2006, 30(7): 616-619. shu

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Received: 2005-09-29
Revised: 2006-01-26

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沈阳化工大学材料科学与工程学院沈阳 110142

A study of the pairing strength in the rare-earth nuclei

Corresponding author:DING Bin-Gang,

School of Science, Huzhou Teachers College, Huzhou 313000, China2 Institute of Modern Physics, Zhejiang University, Hangzhou 310000, China

Received Date:2005-09-29
Accepted Date:2006-01-26
Available Online:2006-07-05

Abstract:In the framework of relativistic mean-field theory, the strength of the pairing force is systematically studied for several isotope chains of rare-earth nuclei. It is shown, for the first time, that the pairing strength of the neutron, G_n, increases dramatically around the magic number N=82, while for the proton it is strongly related to the odd-even difference of the neutron number. The results indicate a strong correlation between the shell structure and the pairing force strength.