摘要
Within the context of the topcolor-assisted technicolor(TC2)model we investigate the associated production of the neutral top-higgs hto with a pair of top quarks,i.e.pp→t_(t)hto at the Large Hadron Collider(LHC),which proceeds through the partonic processes q(q)→t_(t)hto and gg→t_(t)hto.We calculate the production rate and show the distributions of the transverse momenta of hto.It is found that the cross section of pp→t_(t)hot can reach a few hundred fb in the most part of the allowed parameter space and even a few tens of pb for the light top-higgs.Due to the large cross section of t_(t)hto production and the top-charm decay mode of h0t for mhto<2mt,the process pp→t_(t)hto can play an important role in the probe of neutral top-higgs and the test of the TC2 model.
作者
LI Bing-Zhong
HAN Jin-Zhong
李炳中;韩金钟(College of Physics and Information Engineering,Henan Normal University,Xinxiang 453007;College of Physics and Electronic Engineering,Xinyang Normal University,Xinyang 464000)
基金
Supported by the National Natural Science Foundation of China under Grant No 10775039
the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No 20094104110001
and the Program for Youths’Talents of Xinyang Normal University under Grant No 200950。
