Signatures of extra gauge bosons in the littlest Higgs model with T parity at future colliders

We study the collider signatures of a T-odd gauge boson W-H pair production in the littlest Higgs model with T parity (LHT) at Large Hadron Collider (LHC) and Linear Collider (LC). At the LHC, we search for the W-H boson using its leptonic decay, i.e. pp -> WH+WH- -> A(H)A(H)l(+)nu(l)l'(-)(nu) over bar (l'), gives rise to a collider signature of l(+)l'(-) + is not an element of(T). We demonstrate that the LHC not only has a great potential of discovering the W-H boson in this channel, but also can probe enormous parameter space of the LHT. Because of four missing particles in the final state, one cannot reconstruct the mass of W-H at the LHC. But such a mass measurement can be easily achieved at the LC in the process of e(+)e(-)-> WH+WH--> A(H)A(H)W(+)W(-)-> A(H)A(H)jjjj.We present an algorithm of measuring the mass and spin of the W-H boson at the LC. Furthermore, we illustrate that the spin correlation between the W boson and its mother particle (W-H) can be used to distinguish the LHT from other new physics models.