中文摘要：

在具有T宇称的最小希格斯模型下,对大型强子对撞机上的产生过程pp→Ztt以及新的产生道pp→ZtT^＋进行了研究.在该模型所允许的参数空间范围内,Ztt的产生截面有较大的相对修正,可作为一个很好的探针来探测该模型.此外,发现当T^＋质量低于TeV能标时,ZtT＋与Ztt相比有较大的产生率,会对Ztt事例数带来一定的影响.

英文摘要：

The processes ofpp→Zttand a new production channelpp→Ztt were studied at the Large Hadron Collider （LHC） in the framework of the littlest Higgs model with T- parity （LHT）. The results showed that the relative correction of the Ztt production cross section is significant and can be served as a good probe for the LHT model in the allowed parameter space. In addition, for the mass of a T＋ below TeV scale, the pp→Ztt production have a sizable production rate compared with that of the Ztt production, which will influence the Ztt events.