Effects of little Higgs models on single top production at the $e^{-}\gamma$ colliders

Abstract

In the framework of the littlest Higgs($LH$) model and the littlest Higgs model with T-parity($LHT$), We investigate the single top production process $e^{-}\gamma \to {\nu }_{e}b\bar{t}$, and calculate the corrections of these two models to the cross section of this process. We find that in the reasonable parameter space, the correction terms for the tree-level $Wtb$ couplings coming from the $LHT$ model can generate significantly corrections to the cross section of this process, which might be detected in the future high energy linear $e^{+}{e}^{-}$ collider($ILC$) experiments. However, the contributions of the new gauge boson $W_H^{\pm }$ predicted by the $LH$ model to this process is very small.

Comments: 10pages, 4 figures