Associated production of the charged Higgs boson and single top quark at the LHC

The left-right twin Higgs(LRTH) model predicts the existence of the charged Higgs ${\varphi }^{\pm }$. In this paper, we study the production of the charged Higgs boson ${\varphi }^{-}$ with single top quark via the process $bg\to t{\varphi }^{-}$ at the $CERN$ Large Hadron Collider(LHC). The numerical results show that the production cross section can reach the level of $10pb$ in the reasonable parameter space of the LRTH model. We expect that, as long as it is not too heavy, the possible signatures of the heavy charged Higgs boson ${\varphi }^{-}$ might be detected via the decay mode ${\varphi }^{-}\to \bar{t}b$ at the LHC experiments.