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(zhì)中有效質(zhì)量的變化受到核物質(zhì)標(biāo)量密度和矢量密度的雙重影響,使用Walecka模型和相對(duì)論平均場(chǎng)理論,討論了核物質(zhì)標(biāo)量密度與矢量密度的關(guān)系,利用這一關(guān)系改進(jìn)了K介子有效質(zhì)量和核物質(zhì)密度之間存在的依賴(lài)關(guān)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(fèi)曼的疊代模型出發(fā),考慮到入射夸克的味結(jié)構(gòu),研究了π介子的碎裂函數(shù)D_u~π~+,D_d~π~+,和D_s~π~+,并將分析結(jié)果和實(shí)驗(yàn)數(shù)據(jù)進(jìn)行了比較,對(duì)K介子的碎裂函數(shù)D_s~K~+(z),D_u~K~+(z),D_s~K~+(z)和D_d~K~+(z)作出的預(yù)言將被進(jìn)一步的實(shí)驗(yàn)檢驗(yàn)。