From Higgs physics to lepton flavour violation: current bounds and future prospects for vector-like lepton models
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866911535787409408 |
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| author | Daberstiel, Gregor Möhling, Kilian Stöckinger, Dominik Stöckinger-Kim, Hyejung |
| author_facet | Daberstiel, Gregor Möhling, Kilian Stöckinger, Dominik Stöckinger-Kim, Hyejung |
| contents | We present a comprehensive phenomenological study of a class of six vector-like lepton models with seesaw-like mass contributions and strong modifications to Higgs and lepton phenomenology. We focus on lepton flavour conserving and violating observables across all lepton generations and collider observables like $Z$ and Higgs decays. In light of the recent progress at the LHC and precision measurements such as muon $g-2$, as well as in anticipation of upcoming experiments like MEGII, Mu2e/COMET, Mu3e, Belle II and at the HL-LHC, we systematically survey the viable parameter space and identify patterns and correlations. The considered class of models gives rise to a rich and testable phenomenology with robust and complementary probes that allow to distinguish between models in the coming experimental era. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_21414 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | From Higgs physics to lepton flavour violation: current bounds and future prospects for vector-like lepton models Daberstiel, Gregor Möhling, Kilian Stöckinger, Dominik Stöckinger-Kim, Hyejung High Energy Physics - Phenomenology We present a comprehensive phenomenological study of a class of six vector-like lepton models with seesaw-like mass contributions and strong modifications to Higgs and lepton phenomenology. We focus on lepton flavour conserving and violating observables across all lepton generations and collider observables like $Z$ and Higgs decays. In light of the recent progress at the LHC and precision measurements such as muon $g-2$, as well as in anticipation of upcoming experiments like MEGII, Mu2e/COMET, Mu3e, Belle II and at the HL-LHC, we systematically survey the viable parameter space and identify patterns and correlations. The considered class of models gives rise to a rich and testable phenomenology with robust and complementary probes that allow to distinguish between models in the coming experimental era. |
| title | From Higgs physics to lepton flavour violation: current bounds and future prospects for vector-like lepton models |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.21414 |