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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Abstract：
The neutron³PF₂pairing gap in pure neutron matter, neutron³PF₂gap and neutron-proton³SD₁gap 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 the³PF₂superfluidity in neutron matter. It also enhances the³PF₂superfluidity in symmetric nuclear matter and its effect increases monotonically as the Fermi-momentum k_Fincreases, whereas the three-body force is shown to influence only weakly the neutron-proton³SD₁gap in symmetric nuclear matter.

References

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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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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

CUI Chang-Xi
ZUO Wei^,

Corresponding author:ZUO Wei,

Received Date:2008-07-17
Accepted Date:1900-01-01
Available Online:2008-01-03

Abstract:The neutron³PF₂pairing gap in pure neutron matter, neutron³PF₂gap and neutron-proton³SD₁gap 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 the³PF₂superfluidity in neutron matter. It also enhances the³PF₂superfluidity in symmetric nuclear matter and its effect increases monotonically as the Fermi-momentum k_Fincreases, whereas the three-body force is shown to influence only weakly the neutron-proton³SD₁gap in symmetric nuclear matter.