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

作　　者：邝宇平 任泓雨 夏凌昊 

机构地区：[1]Department of Physics,Tsinghua University [2]Center for High Energy Physics,Tsinghua University

出　　处：《Chinese Physics C》2016年第2期1-11,共11页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11135003 and 11275102)

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.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.

关 键 词：model-independent heavy neutral Higgs LHC Run 2 

分 类 号：O572.2[理学—粒子物理与原子核物理]