Searching for a neutral top-Higgs in association with top-quark pairs at an e^+e^- collider in the TC2 model  

作　　者：李炳中 韩金钟 

机构地区：[1]College of Physics and Information Engineering,Henan Normal University [2]College of Physics and Electronic Engineering,Xinyang Normal University

出　　处：《Chinese Physics C》2011年第10期908-913,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10775039);Specialized Research Fund for Doctoral Program ofHigher Education (20094104110001);Programme for Youths’ Talents of Xinyang Normal University (200950)

摘　　要：We investigate the associated production of the neutral top-Higgs ht^0 with a pair of top-quarks in the context of the topcolor-assisted technicolor （TC2） model at the future e＋e- Linear Colliders （LC） i.e. e＋e- → ttht^0. We calculate the production rate and present the distributions of the transverse momenta of top-Higgs and top-quarks. The results show that the total cross section is typically of the order of 1.0 7.5 fb in the energy range between 1000 GeV and 2000 GeV of the LC for the whole top-Higgs mass region of interest. It should be distinctly possible that hundreds or even thousands of ht^0 signals can be produced per year at the LC given the luminosity L = 500 fb^-1.We investigate the associated production of the neutral top-Higgs ht^0 with a pair of top-quarks in the context of the topcolor-assisted technicolor （TC2） model at the future e＋e- Linear Colliders （LC） i.e. e＋e- → ttht^0. We calculate the production rate and present the distributions of the transverse momenta of top-Higgs and top-quarks. The results show that the total cross section is typically of the order of 1.0 7.5 fb in the energy range between 1000 GeV and 2000 GeV of the LC for the whole top-Higgs mass region of interest. It should be distinctly possible that hundreds or even thousands of ht^0 signals can be produced per year at the LC given the luminosity L = 500 fb^-1.

关 键 词：topcolor-assisted technicolor （TC2） model TOP-HIGGS cross section 

分 类 号：O572.214[理学—粒子物理与原子核物理] O572.33[理学—物理]