This paper simulates collision events on the large hadron collider(LHC)by the Monte Carlo method under the conditions of integrated luminosity of 300 fb-1 and √s=14 TeV.Further,it analyzes the production and decay process(pp→H→hh→τ+τ-τ+τ-)of the heavy-neutral Higgs boson(H)predicted by the two-Higgs-doublet model and finds that the final state is l±vvl±vvτjτj(l=e,µ)signal.This illustrates the high probability of discovering a 4τ signal at the LHC when the requirements of past experiments and theories are met.
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