Many new physics models predict the existence of TeV-scale charged gauge
boson Wβ² together with Higgs boson(s). We study the Wβ²WH
interaction and explore the angular distribution of charged lepton to
distinguish WRβ²βWH from WLβ²βWH in ppβHWβbbΛlΞ½ process at the LHC. It is found that a new type forward-backward
asymmetry(AFBβ) relating to the angle between the direction of the charged
lepton in W rest frame and that of the reconstructed Wβ² in laboratory
frame is useful to investigate the properties of Wβ²WH interaction. We
analyze the Standard Model backgrounds and develop a set of cuts to highlight
the signal and suppress the backgrounds at LHC. We find that AFBβ can reach
0.03(-0.07) for WRβ²β(WLβ²β) production at Sβ=14 TeV