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arXiv 2109.02586hep-ph
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具有类矢量轻子的扩展Higgs扇区中的轻子$g-2$异常

Leptonic $g-2$ anomaly in an extended Higgs sector with vector-like leptons

Hrishabh Bharadwaj, Sukanta Dutta, Ashok Goyal

摘要:

通过推广具有SM规范单重态复合标量场和单重态类矢量轻子(VLL)场的惰性双Higgs偶态模型(2HDM),解决了观测到的μ子和电子反常磁偶极矩(MDM)的差异.通过LHC、LEP II数据和电弱精密测量,得到了Higgs衰变约束下的规范玻色子的允许参数空间。μ子和电子MDM的,然后解释在一个共同的参数空间内的不同的允许耦合和模型粒子的质量。

英文摘要:

We address the observed discrepancies in the anomalous magnetic dipole moments (MDM) of the muon and electron by extending the inert two Higgs Doublet Model (2HDM) with SM gauge singlet complex scalar field and singlet Vector-like Lepton (VLL) field. We obtain the allowed parameter space constrained from the Higgs decays to gauge Bosons at LHC, LEP II data and electro-weak precision measurements. The muon and electron MDM's are then explained within a common parameter space for different sets of allowed couplings and masses of the model particles.

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