质量密度相关模型研究CFL奇异夸克物质性质(英文)  

Color-Flavor Locked Strange Quark Matter in a Mass Density-Dependent Model

作　　者：陈曰德[1] 彭光雄[1] 温新建[2] 

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院研究生院,北京100049

出　　处：《高能物理与核物理》2007年第3期269-273,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(10375074,90203004,19905011,10675137)资助~~

摘　　要：在质量-密度相关模型下研究了CFL奇异夸克物质,并将结果与传统的袋模型结果进行比较．两个模型均表明,在合理的参数范围内,CFL相比正常核物质更稳定．然而,低密度时声速的行为完全相反,这使得CFL夸克星的最大质量在质量-密度相关模型下比袋模型大．Properties of color-flavor locked （CFL） strange quark matter have been studied in a mass-densitydependent model, and compared with the results in the conventional bag model. In both models, the CFL phase is more stable than the normal nuclear matter for reasonable parameters. However, the lower density behavior of the sound velocity in this model is completely opposite to that in the bag model, which makes the maximum mass of CFL quark stars in the mass-density-dependent model larger than that in the bag model.

关 键 词：色超导 奇异夸克物质 夸克星 

分 类 号：O572.33[理学—粒子物理与原子核物理]