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中子物质中的3PF2态超流性和微观三体核力效应
引用本文:崔常喜,左 维. 中子物质中的3PF2态超流性和微观三体核力效应[J]. 物理学报, 2007, 56(9): 5185-5190
作者姓名:崔常喜  左 维
作者单位:中国科学院近代物理研究所,兰州 730000;中国科学院研究生院, 北京 100049
基金项目:国家自然科学重点基金(批准号:10575119, 10235030),中国科学院知识创新工程重要方向性项目(批准号:KJCX3-SYW-N2), 国家重点基础研究发展规划项目(批准号:G2000077400),国家科技部重大前期研究专项基金(批准号:2002CAB00200)资助的课题.
摘    要:利用Brueckner-Hartree-Fock(BHF)和BCS理论方法,计算了纯中子物质中处于3PF2态的中子对关联能隙,特别是研究并讨论了微观三体核力对3PF2态中子超流性强弱的影响. 结果表明:三体核力显著地增强了中子物质中3PF2态中子超流性;当采用BHF单粒子能谱时,三体核力导致相应的对关联能隙峰值由0.22MeV增大到0.50MeV.关键词:中子物质3PF2超流性')" href="#">3PF2超流性三体核力BCS理论

关 键 词:中子物质  3PF2超流性  三体核力  BCS理论
文章编号:1000-3290/2007/56(09)/5185-06
收稿时间:2006-11-09
修稿时间:2006-11-09

Neutron 3PF2 superfluidity in neutron matter and the effect of microscopic three-body force
Cui Chang-Xi and Zuo Wei. Neutron 3PF2 superfluidity in neutron matter and the effect of microscopic three-body force[J]. Acta Physica Sinica, 2007, 56(9): 5185-5190
Authors:Cui Chang-Xi and Zuo Wei
Affiliation:1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate School of Chinese Academy of Sciences, Belling 100049, China
Abstract:The neutron 3PF2 pairing gap in pure neutron matter has been studied by using the Brueckner-Hartree-Fock(BHF) approach and the BCS theory. We have concentrated our attention on investigating the three-body force effect on the neutron superfluidity in the 3PF2 channel. The calculated results indicate that the three-body force enhances remarkably the 3PF2 superfluidity in neutron matter. When adopting the BHF single-particle spectrum, the three-body force turns out to increase the maximum value of the pairing gap from about 0.22MeV to about 0.5MeV.
Keywords:neutron matter   3PF2 superfluidity   three-body force   BCS theory
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