n-p Interaction in Odd-Odd Nuclei and Odd-A Nuclei

GAO ZaoChun; CHEN YongShou

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2000, Vol. 24> Issue(2) : 146-152

n-p Interaction in Odd-Odd Nuclei and Odd-A Nuclei

GAO ZaoChun ^, ,
CHEN YongShou

Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China2 Institute of Theoretical Physics, The Chinese Academy of Sciences, Bejing 100080, China

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Abstract：
The interaction energies of the last i proton(s) and the last j neutron(s) were obtained from nuclear mass-data-base. The last n-p interaction energy ε_1p-1n of odd-odd nuclei was compared with half of the average value of the last proton-dineutron interaction energy ε_1p-2n in odd-Z nuclei and the last diproton neutron interaction energy ε_2p-1n in odd-N nuclei. It is found that the former is systematically greater than the latter. The enhancement of n-p interaction may be attributed to the effect of pairing weakening the n-p interaction in odd-A nuclei as well as GM shifts. Additionally, it is found that ε_1p-2n in odd-Z nuclei is generally approximate to ε_2p-1n in odd-N nuclei with the same mass number A, which is equivalent to the Garvey-Kelson mass relation.

References

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GAO ZaoChun and CHEN YongShou. n-p Interaction in Odd-Odd Nuclei and Odd-A Nuclei[J]. Chinese Physics C, 2000, 24(2): 146-152.

GAO ZaoChun and CHEN YongShou. n-p Interaction in Odd-Odd Nuclei and Odd-A Nuclei[J]. Chinese Physics C, 2000, 24(2): 146-152. shu

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Received: 1998-12-09
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

n-p Interaction in Odd-Odd Nuclei and Odd-A Nuclei

GAO ZaoChun ^,
CHEN YongShou

Corresponding author: GAO ZaoChun,

Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China2 Institute of Theoretical Physics, The Chinese Academy of Sciences, Bejing 100080, China

Received Date: 1998-12-09
Accepted Date: 1900-01-01
Available Online: 2000-02-05

Abstract: The interaction energies of the last i proton(s) and the last j neutron(s) were obtained from nuclear mass-data-base. The last n-p interaction energy ε_1p-1n of odd-odd nuclei was compared with half of the average value of the last proton-dineutron interaction energy ε_1p-2n in odd-Z nuclei and the last diproton neutron interaction energy ε_2p-1n in odd-N nuclei. It is found that the former is systematically greater than the latter. The enhancement of n-p interaction may be attributed to the effect of pairing weakening the n-p interaction in odd-A nuclei as well as GM shifts. Additionally, it is found that ε_1p-2n in odd-Z nuclei is generally approximate to ε_2p-1n in odd-N nuclei with the same mass number A, which is equivalent to the Garvey-Kelson mass relation.