Further investigation of the model-independent probe of heavy neutral Higgs bosons at LHC Run 2

【摘要】 In one of our previous papers,we provided general,effective Higgs interactions for the lightest Higgs boson h（SM-like） and a heavier neutral Higgs boson H based on the effective Lagrangian formulation up to the dim-6 interactions,and then proposed two sensitive processes for probing H.We showed in several examples that the resonance peak of H and its dim-6 effective coupling constants（ECC） can be detected at LHC Run 2 with reasonable integrated luminosity.In this paper,we further perform a more thorough study of the most sensitive process,pp →VH*→VVV,providing information about the relations between the 1σ,3σ,5σ statistical significance and the corresponding ranges of the Higgs ECC for an integrated luminosity of 100 fb^-1.These results have two useful applications in LHC Run 2:（A） realizing the experimental determination of the ECC in the dim-6 interactions if H is found and,（B） obtaining the theoretical exclusion bounds if H is not found.Some alternative processes sensitive for certain ranges of the ECC are also analyzed.更多还原

【Abstract】 In one of our previous papers,we provided general,effective Higgs interactions for the lightest Higgs boson h（SM-like） and a heavier neutral Higgs boson H based on the effective Lagrangian formulation up to the dim-6 interactions,and then proposed two sensitive processes for probing H.We showed in several examples that the resonance peak of H and its dim-6 effective coupling constants（ECC） can be detected at LHC Run 2 with reasonable integrated luminosity.In this paper,we further perform a more thorough study of the most sensitive process,pp →VH*→VVV,providing information about the relations between the 1σ,3σ,5σ statistical significance and the corresponding ranges of the Higgs ECC for an integrated luminosity of 100 fb^-1.These results have two useful applications in LHC Run 2:（A） realizing the experimental determination of the ECC in the dim-6 interactions if H is found and,（B） obtaining the theoretical exclusion bounds if H is not found.Some alternative processes sensitive for certain ranges of the ECC are also analyzed.更多还原