奇异强子物质中的Δ自由度的影响  

Effect of △-Isobar in Strange Hadronic Matter

作　　者：孙宝玺[1] 李磊[1] 宁平治[1] 赵恩广[2] 

机构地区：[1]南开大学物理系,天津300071 [2]中国科学院理论物理研究所,北京100080

出　　处：《高能物理与核物理》1999年第12期1203-1208,共6页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;教育部博士学科点专项基金

摘　　要：用相对论平均场方法研究了西自由度对奇异强子物质的影响，结果发现考虑上自由度后奇异强子物质在较高密度区出现第二个稳定态，同时通过反应ＡＡ－ＥＮ％进Ｅ超子的产生．The effect of in-meditim isobar in strange hadronic mattert(SHM)isstudied wilson the framework of the relativishc mean field(RMF). As far as the effectof the in-medium isobar is concerned, we find a second stable state comes intObeing in the higher density scope in SHM and thes effect promotes the producing of 8hyperons through the reachon AA-EN This effect is consistent with the conclusionthat E hyperons are conshtuents of SHM.

关 键 词：奇异强子物质 相对论平均场 Δ自由度 SHM 

分 类 号：O572.2[理学—粒子物理与原子核物理]