NLO Corrections of H_(TC)Π~0 and Π^+Π^- Pair Production at ILC in TC2 Model  

作　　者：QIAO Qing-Peng LI Zuo LI Xue-Qian WANG Xue-Lei 

机构地区：[1]Department of Physics, Nankai University, Tianjin 300071, China [2]Department of Physics, Henan Normal University, Xinxiang 453007, China

出　　处：《Communications in Theoretical Physics》2009年第8期311-317,共7页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China and the Special Grant for the PHD program of the Education Ministry of China under Grant No.10775073

摘　　要：As well known, if the Higgs boson were not observed at LHC, the technicolor model would be the most favorable candidate responsible for the symmetry breaking. To overcome some defects in the previous model, some extended versions have been proposed. In the TC2 model typical signature is existence of heavy HTC and technipion ∏. A direct proof of validity of the model is to produce them at accelerator. Thus we study the production rates of e＋e^- → HTC∏^0 and e＋e^- → ∏＋∏- at ILC in the topcolor-assisted technicolor （TC2） model. In fact, there is a flood of models belonging to new physics, which can result in products with characteristics similar to HTC ＋ ∏ of the TC2 model. Therefore to distinguish this model from others one may need to investigate some details by calculating the cross section to NLO. We indeed find that the NLO corrections are significant, namely the ratio δ ≡（ σNLO - σLO）/σLO in e＋e- →HTC∏^0 exceeds 100% within a plausible parameter space.

关 键 词：TC2 TOP-PION TOP-HIGGS LOOPTOOLS 

分 类 号：O413.3[理学—理论物理] O437[理学—物理]