Probing W′ₗ WH and W′ᵣ W H Interaction at LHC

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Many new physics models predict the existence of TeV-scale charged gauge boson W′ together with Higgs boson(s). We study the W′ WH interaction and explore the angular distribution of charged lepton to distinguish Wᵣ′ WH from Wₗ′ WH in pp→ HW→ b b l ν process at the LHC. It is found that a new type forward-backward asymmetry(AFB) relating to the angle between the direction of the charged lepton in W rest frame and that of the reconstructed W′ in laboratory frame is useful to investigate the properties of W′ W H 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 AFB can reach 0.03(-0.07) for Wᵣ′(Wₗ′) production at √S=14 TeV.