Superfluid nuclear matter in BCS theory and beyond

摘要：

Medium polarization effects are studied for 1S0 pairing in nuclear matter within BHF approach. The screening potential is calculated in the RPA limit, suitably renormalized to cure the low density mechanical instability of nuclear matter. The self-energy corrections are consistently included resulting in a strong depletion of the Fermi surface. The self-energy effects always lead to a quenching of the gap, whereas it is almost completely compensated by the anti-screening effect in nuclear matter.

关键词： pairing in nuclear matter, self-energy effect, medium effect

作者: CAO Li-Gang U.Lombardo P.Schuck

作者单位: Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China;Center of Theoretical Laboratori Nazionali del Sud, INFN, Via Santa Sofia 62, I-95123 Catania, Italy Institut de Physique Nucléaire, Université Paris-Sud,F-91406 Orsay CEDEX, France

会议类型: 国际会议

会议名称: 第十二届全国核结构研讨会暨第八次全国核结构专题讨论会(12th National Conference on Nuclear Structure and the 8th Symposium on Nuclear Structure)

会议地点: 重庆

会议语种:英文

页码: 33-36

在线出版日期: 2008-05-10（万方平台首次上网日期，不代表论文的发表时间）