【摘要】 在顶色辅助的多标度人工色模型框架下 ,计算了赝标哥尔斯通玻色子(TC介子 ,Top介子 )对Tevatron上 qq→tt顶夸克对产生的单圈修正 .计算表明此修正主要来自Top介子 ,在适当的参数范围内 ,PGB′s对顶夸克对树图级产生截面的单圈修正可达 1 7% .更多还原

【Abstract】 In topcolor assisted multiscale technicolor (TOPCMTC) model.we calculate the corrections of Pseudo Goldstone bosons (technipions,top pions)to the cross section of the process q q→t t at the Fermilab Tevatron.Our results show that the corrections mainly come form top pions.With reasonable value of the parameters.the correction can increase the total t t production corss section σ t t by as much as 17%.This may provide a window to detect tpo pions.更多还原