Seesaw lepton masses and muon $g-2$ from heavy vector-like leptons
| Autor: | Hyun Min Lee, Kimiko Yamashita, Jiseon Song |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Particle physics Muon Physics::Instrumentation and Detectors High Energy Physics::Lattice Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences General Physics and Astronomy Charge (physics) law.invention High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Seesaw mechanism Seesaw molecular geometry law Higgs boson High Energy Physics::Experiment Collider Lepton |
| Popis: | We propose a model for the vector-like lepton to explain the small muon mass by a seesaw mechanism, based on lepton-specific two Higgs doublet models with a local $U(1)'$ symmetry. There is no bare muon mass for a nonzero $U(1)'$ charge of the leptophilic Higgs doublet, so the physical muon mass is generated due to the mixing between the vector-like lepton and the muon after the leptophilic Higgs doublet and the dark Higgs get VEVs. In this scenario, the non-decoupling effects of the vector-like lepton give rise to leading contributions to the muon $g-2$, thanks to the light $Z'$ and the light dark Higgs boson. We discuss various constraints on the model from lepton flavor violation, electroweak precision and Higgs data, as well as collider searches. 24 pages, 8 figures, Published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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