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Many new physics models beyond the standard model, such as the littlest higgsmodels and the left right twin higgs models, predict the existence of the largecharged higgs couplings H^-q\bar b and H^+b\bar q, where q=t or the newvector-like heavy quark T; On the other hand, some new physics models like thelittlest higgs also predict the gauge-higgs couplings. Such couplings may haverich collider phenomenology. We focus our attention on these couplings inducedby the littlest higgs models and the left right twin higgs models models andconsider their contributions to the production cross section for W^\pm H^\mpproduction at the large hadron colliders. We find that the cross sections, inthe littlest higgs models, on the parton level gg \to W^\pm H^\mp and q\bar q\to W^\pm H^\mp (q=u,d,s,c,b) may reach tens of several dozen femtobarns inreasonable parameters space at the collision energy of 14 TeV and that thetotal cross section can even reach a few hundred femtobarns in certain favoredspace. While in the left right twin higgs models, the production rates arebasically one order lower than these in littlest higgs. Therefore, due to thelarge cross sections of that in the littlest higgs, it may be possible to probethe charged higgs via this process in a large parameter space.

Charged Higgs Production in Association With W^{\pm} at Large Hadron Colliders