Shell Model Calculation for Light Neutron-Rich Nuclei

Zhang Changhua; Gu Jinnan

Chinese Physics C> 1996, Vol. 20> Issue(S2) : 165-170

Shell Model Calculation for Light Neutron-Rich Nuclei

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

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Abstract：
A shell model calculation is carried out for nuclei with 9 ≤ A ≤ 14 and 3 ≤ Z ≤ 5. In the calculation, ⁸He is treated as core. The data for 24 experimental energy spectra are selected to determine the parameters of the modified surface δ interaction (MSDI) and the single-particle energies. The energy root-mean square deviation is RMS=0.72 MeV. Then the binding energies, the low-lying excited energy spectra, and the electromagnetic properties are calculated and the results are in good agreement with existing measurements in general. The micromechanism of the halo structure and the parity conversion of the ¹¹Be are discussed in detail. This work is carried out with the shell model code OXBASH.
- shell model ,
- mean-field ,
- unstable nuclei

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Zhang Changhua and Gu Jinnan. Shell Model Calculation for Light Neutron-Rich Nuclei[J]. Chinese Physics C, 1996, 20(S2): 165-170.

Zhang Changhua and Gu Jinnan. Shell Model Calculation for Light Neutron-Rich Nuclei[J]. Chinese Physics C, 1996, 20(S2): 165-170. shu

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Received: 1995-03-12

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Supported by the National Natural Science Foundation of China and the Science Foundation of the Chinese Academy of Sciences.

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沈阳化工大学材料科学与工程学院沈阳 110142

Shell Model Calculation for Light Neutron-Rich Nuclei

Zhang Changhua
Gu Jinnan

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Received Date: 1995-03-12

Fund Project: Supported by the National Natural Science Foundation of China and the Science Foundation of the Chinese Academy of Sciences.

Abstract: A shell model calculation is carried out for nuclei with 9 ≤ A ≤ 14 and 3 ≤ Z ≤ 5. In the calculation, ⁸He is treated as core. The data for 24 experimental energy spectra are selected to determine the parameters of the modified surface δ interaction (MSDI) and the single-particle energies. The energy root-mean square deviation is RMS=0.72 MeV. Then the binding energies, the low-lying excited energy spectra, and the electromagnetic properties are calculated and the results are in good agreement with existing measurements in general. The micromechanism of the halo structure and the parity conversion of the ¹¹Be are discussed in detail. This work is carried out with the shell model code OXBASH.