eγ对撞机上Top-pion介子产生的研究  

The Study of Top-pions Production at the eγ Colliders

作　　者：刘要北[1] 邵美娟[1] 李水斌[1] 

机构地区：[1]河南科技学院机电学院物理教研室,河南新乡453003

出　　处：《甘肃联合大学学报（自然科学版）》2009年第1期42-44,48,共4页Journal of Gansu Lianhe University :Natural Sciences

摘　　要：在顶色辅助的人工色(TC2)模型框架下,研究了中性Top-pion介子∏t0和带电Top-pion介子∏t±的联合产生过程e-γ→e-∏t+∏t-和e-γ→ve∏0t∏t-.研究表明在TC2模型合理的参数空间内,其产生截面可达到100-101fb的量级,在未来的高能直线对撞机上可产生足够多的事例.因此,这两个过程为我们在将来的高能直线对撞机上实验中探测Top-pion介子和检验TC2模型提供了良机.另一方面,这两个过程的散射截面比最小超对称下的类似过程大一个量级.因而,我们很容易把Top-pion介子同MSSM下产生的Higgs玻色子区分开来.In the context of topcolor-assisted Technicolor（TC2） model, we study the charged and neutral Top-pions production process e^-γ→e^-∏r＋∏r^- and e^-γue∏t^0∏t^-. in detail. The results show that the production rates can reach the level of tens fb with reasonable parameter values. So one can expect that enough signals can be produced in the International Linear Collider（ILC） experiments. Therefore, such processes provide us a unique chance to detect Top-pion evevts and test the TC2 model. On the other hand,the cross sections of these two processes are about one order of magnitude larger than those of some similar processes in MSSM. So we can easily distinguish the Top-pion from orther Higgs bosons in MSSM.

关 键 词：顶色辅助的人工色模型 线性对撞机 产生截面 

分 类 号：O413.3[理学—理论物理]