TC2模型中中性特征粒子在未来高能直线对撞机上的产生  

Neutral Particle Pair Production at the Planned High Energy Linear Colliders in the TC2 Model

作　　者：于勉[1] 乔庆鹏[2] 张向丹[3] 

机构地区：[1]新乡医学院,河南新乡453007 [2]南开大学物理学院,天津300071 [3]新乡学院,河南新乡453002

出　　处：《华北水利水电学院学报》2008年第6期103-106,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：top-pions(∏0,±)和top-higgs(HTC)是TC2模型所预言的特征粒子,实验上如果能够发现这些粒子则可以认为是对TC2模型的直接证实,为此研究了这些特征粒子在树图水平上的成对产生过程,即e+e-→HTC∏0和e+e-→∏+∏-.结果表明,e+e-→HTC∏0的产生截面可以达fb量级,而e+e-→∏+∏-的产生截面可达几十个fb量级,这些过程可以产生足够多的、有特征的多喷注末态,而且标准模型的背景可以有效地压低.因此,在未来建设的高亮度直线对撞机上,top-pion和top-higgs可以通过以上过程发现.The top pions(∏(±,0)) and the top-higgs(H_(TC)) are the typical particles predicted by the topcolor-assisted technicolor(TC2) model,and the observation of these particles can be regarded as the direct evidence of the TC2 model.Two pair production processes of these new particles,i.e.,e+e-→H_(TC)∏0 and e+e-→∏+∏-,are studyed.The results show that the production rates are at the level of several fb for e+e-→H_(TC)∏0,and tens of fb for e+e-→∏+∏-.These processes can produce the adequate distinct multijet final s...

关 键 词：标准模型 电弱对称破缺 人工色理论 顶色辅助的人工色理论 top-pions介子 top-higgs玻色子. 

分 类 号：O413.4[理学—理论物理]