We have studied the associated production processes of a neutral top-Higgs in the topcolor assisted technicolor model with a pair of heavy quarks in γγ collisions at the International Linear Collider （ILC）. We find that the cross section for ttht in γγ collisions is at the level of a few fb with the c.m. energy √s=1000 GeV, which is consistent with the results of the cross section of ttH in the standard model and the cross section of tth in the minimal supersymmetric standard model. It should be clear that hundreds of to thousands of ht per year can be produced at the ILC. This process of γγ→ttht is really interesting in testing the standard model and searching the signs of technicolor.
In this paper, we calculate the production of a charged top pion in association with a W boson via gg fusion at CERN＇s Large Hadron Collider in the context of the topcolor assisted technicolor model. We find that the total cross section of pp → gg → W±＋πtT is several dozen femtobarns with reasonable values of the parameters, and the total cross section of pp→ W±＋πtT can reach a few hundred femtobarns when we consider the sum of the contributions of these two parton subprocesses, gg→ W±＋πtT and bb→W±＋πtT.
