An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and h -> mu tau
An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and h -> mu tau
复制标题
双希格斯双峰模型的扩展和 750 GeV 双光子、μ 子 g-2 和 h -> mu tau 的过量
DOI：
10.1016/j.physletb.2016.04.036
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发表时间：
2016
影响因子：
4.4
通讯作者：
Yang Jin Min
中科院分区：
文献类型：
--
作者：
Han Xiao-Fang;Wang Lei;Yang Jin Min
In this paper we simultaneously explain the excesses of the 750 GeV diphoton, muon g-2 and h→ μ τ in an extension of the two-Higgs-doublet model (2HDM) with additional vector-like fermions and a CP-odd scalar singlet (P) which is identified as the 750 GeV resonance. This 750 GeV resonance has a mixing with the CP-odd scalar (A) from a second scalar doublet, which leads to a coupling between P and the SM particles as well as a coupling between A and the vector-like fermions. Such mixing and couplings are strongly constrained by τ→ μ γ, muon g-2 and the 750 GeV diphoton data. We scan over the parameter space and find that such an extension can simultaneously account for the observed excesses of 750 GeV diphoton, muon g-2 and h→ μ τ. The 750 GeV resonance decays in exotic modes, such as P→ h A, P→ H Z, P→ H A and P→ W±H∓, and its width can be dozens of GeV and is sensitive to the mixing angle.
