在带有T宇称的最小Higgs(LHT)模型的框架内,研究了在下一代国际直线对撞机(ILC)上top夸克对的产生过程.发现与标准模型相比,LHT模型对ILC上顶夸克对产生截面的修正幅度,在合适的参数空间内可以超过5%.此外,对左右不对称性参量ALR(tt)的修正幅度会更大.因此,通过在ILC上测量top夸克对的产生截面尤其是ALR(tt),能够探测到LHT模型的效应.
: In the framework of the littlest Higgs model with T-parity, the top pair production at the next genera- tion colliders ILC is studied. It is found that the magnitude of the corrections to the standard model top pair production rate at ILC may be over 5 % , for reasonable values of the parameters. Besides, the corrections to the asymmetry A~ (tt) may be more sizable. Therefore ,the top pair production at ILC may serve as a probe of the littlest Higgs model with T-parity, especially the asymmetry ALR (tt).