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

  • 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.
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Yu-Ping Kuang, Hong-Yu Ren and Ling-Hao Xia. Further investigation of the model-independent probe of heavy neutral Higgs bosons at LHC Run 2[J]. Chinese Physics C, 2016, 40(2): 023101. doi: 10.1088/1674-1137/40/2/023101
Yu-Ping Kuang, Hong-Yu Ren and Ling-Hao Xia. Further investigation of the model-independent probe of heavy neutral Higgs bosons at LHC Run 2[J]. Chinese Physics C, 2016, 40(2): 023101.  doi: 10.1088/1674-1137/40/2/023101 shu
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Received: 2015-06-29
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    Supported by National Natural Science Foundation of China (11135003 and 11275102)

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

    Corresponding author: Yu-Ping Kuang,
    Corresponding author: Hong-Yu Ren,
    Corresponding author: Ling-Hao Xia,
  • 1. Department of Physics, Tsinghua University, Beijing 100084, China
  • 2. Center for High Energy Physics, Tsinghua University, Beijing 100084, China
  • 3.  Department of Physics, Tsinghua University, Beijing 100084, China
Fund Project:  Supported by National Natural Science Foundation of China (11135003 and 11275102)

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.

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