Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force

CUI Chang-Xi; ZUO Wei

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 73-76

Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force

CUI Chang-Xi ,
ZUO Wei ^,

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The neutron ³PF₂ pairing gap in pure neutron matter, neutron ³PF₂ gap and neutron-proton ³SD₁ gap in symmetric nuclear matter have been studied by using the Brueckner-Hartree-Fock(BHF) approach and the BCS theory. We have concentrated on investigating and discussing the three-body force effect on the nucleon superfluidity. The calculated results indicate that the three-body force enhances remarkably the ³PF₂ superfluidity in neutron matter. It also enhances the ³PF₂ superfluidity in symmetric nuclear matter and its effect increases monotonically as the Fermi-momentum k_F increases, whereas the three-body force is shown to influence only weakly the neutron-proton ³SD₁ gap in symmetric nuclear matter.

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CUI Chang-Xi and ZUO Wei. Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force[J]. Chinese Physics C, 2008, 32(S2): 73-76.

CUI Chang-Xi and ZUO Wei. Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force[J]. Chinese Physics C, 2008, 32(S2): 73-76. shu

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Received: 2008-07-17
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force

Corresponding author: ZUO Wei,

Received Date: 2008-07-17

Accepted Date: 1900-01-01

Available Online: 2008-01-03

Abstract: The neutron ³PF₂ pairing gap in pure neutron matter, neutron ³PF₂ gap and neutron-proton ³SD₁ gap in symmetric nuclear matter have been studied by using the Brueckner-Hartree-Fock(BHF) approach and the BCS theory. We have concentrated on investigating and discussing the three-body force effect on the nucleon superfluidity. The calculated results indicate that the three-body force enhances remarkably the ³PF₂ superfluidity in neutron matter. It also enhances the ³PF₂ superfluidity in symmetric nuclear matter and its effect increases monotonically as the Fermi-momentum k_F increases, whereas the three-body force is shown to influence only weakly the neutron-proton ³SD₁ gap in symmetric nuclear matter.

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Superfluidity in neutron matter and symmetric nuclear matter and the effect of a microscopic three-body force

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