Using different ratioes of ρs to ρb , we have calculated the in-medium kaon and antikaon effective masses which are not only dependent on the nuclear vector density ρs but also on the scalar density ρs .
分析了K介子在核物质中有效质量的变化受到核物质标量密度和矢量密度的双重影响,使用Walecka模型和相对论平均场理论,讨论了核物质标量密度与矢量密度的关系,利用这一关系改进了K介子有效质量和核物质密度之间存在的依赖关系。
The framework is also extended to predict the kaon fragmentation functions with distinction of DsK+(z) , DuK+ (z) ,DsK+(z)and DdK+ (z) .
从菲尔德-费曼的叠代模型出发,考虑到入射夸克的味结构,研究了π介子的碎裂函数D_u~π~+,D_d~π~+,和D_s~π~+,并将分析结果和实验数据进行了比较,对K介子的碎裂函数D_s~K~+(z),D_u~K~+(z),D_s~K~+(z)和D_d~K~+(z)作出的预言将被进一步的实验检验。
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