Chinese Physics C > 2018, Vol. 42 > Issue(7): 073103 DOI: 10.1088/1674-1137/42/7/073103

Pair production of Higgs boson in NMSSM at the LHC with the next-to-lightestCP-even Higgs boson being SM-like

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College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China

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Abstract：
The next-to-minimal supersymmetric standard model (NMSSM) more naturally accommodates a Higgs boson with a mass of approximately 125 GeV than the minimal supersymmetric standard model (MSSM). In this work, we assume that the next-to-lightest CP-even Higgs boson h ₂is the SM-like Higgs boson h, whereas the lightest CP-even Higgs boson h ₁is dominantly singlet-like. We discuss the h ₁ h ₁, h ₂ h ₂, and h ₁ h ₂pair production processes via gluon-gluon fusion at the LHC for an collision energy of 14 TeV, and we consider the cases in which one Higgs boson decays to bband the other decays to γγor τ ⁺ τ ^-. We find that, for m _h₁≲ 62 GeV, the cross section of the gg→ h ₁ h ₁process is relatively large and maximally reaches 5400 fb, and the production rate of the h ₁ h ₁→ bb τ ⁺ τ ^-final state can reach 1500 fb, which make the detection of this final state possible for future searches of an integrated luminosity of 300 and 3000 fb ^-1. This is mainly due to the contributions from the resonant production process pp→ h ₂→ h ₁ h ₁and the relatively large branching ratio of h ₁→ bband h ₁→ τ ⁺ τ ^-. The cross sections of the pp→ h ₂ h ₂and pp→ h ₁ h ₂production processes maximally reach 28 fb and 133 fb, respectively.
- next-to-Minimal supersymmetric standard model (NMSSM),
- SM-like Higgs boson,
- Higgs pair production

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Zhaoxia Heng, Xue Gong and Haijing Zhou. Pair production of Higgs boson in NMSSM at the LHC with the next-to-lightest CP-even Higgs boson being SM-like[J]. Chinese Physics C, 2018, 42(7): 073103. doi: 10.1088/1674-1137/42/7/073103

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沈阳化工大学材料科学与工程学院沈阳 110142

Pair production of Higgs boson in NMSSM at the LHC with the next-to-lightestCP-even Higgs boson being SM-like

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Pair production of Higgs boson in NMSSM at the LHC with the next-to-lightestCP-even Higgs boson being SM-like

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