kaon

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介子在核物質中有效質量的變化受到核物質標量密度和矢量密度的雙重影響,使用Walecka模型和相對論平均場理論,討論了核物質標量密度與矢量密度的關系,利用這一關系改進了K介子有效質量和核物質密度之間存在的依賴關系。

The framework is also extended to predict the kaon fragmentation functions with distinction of DsK+(z) , DuK+ (z) ,DsK+(z)and DdK+ (z) .

從菲爾德-費曼的疊代模型出發,考慮到入射夸克的味結構,研究了π介子的碎裂函數D_u~π~+,D_d~π~+,和D_s~π~+,并將分析結果和實驗數據進行了比較,對K介子的碎裂函數D_s~K~+(z),D_u~K~+(z),D_s~K~+(z)和D_d~K~+(z)作出的預言將被進一步的實驗檢驗。