Associated production of the heavy charged gauge boson WH and a top quark at LHC

In the context of the topflavor seesaw model, we study the production of the heavy charged gauge boson W-H associated with a top quark at the LHC. Focusing on the searching channel pp -> tW(H) -> t (t) over barb -> lvjjbbb, we carry out a full simulation of the signal and the relevant standard model backgrounds. The kinematical distributions of final states are presented. It is found that the backgrounds can be significantly suppressed by sets of kinematic cuts, and the signal of the heavy charged boson might be detected at the LHC with root s = 14 TeV. With an integrated luminosity of L = 100 fb(-1), a 8.3 sigma signal significance can be achieved for m(WH) = 1.60TeV. Copyright (C) EPLA, 2014