2020.PhysRevD.102.071901.pdf (1.06 MB)
Anomalous magnetic moments from asymptotic safety
journal contribution
posted on 2023-06-10, 02:46 authored by Gudrun Hiller, Clara Hormigos-Feliu, Daniel LitimDaniel Litim, Tom SteudtnerThe measurements of the muon and electron anomalous magnetic moments hint at physics beyond the standard model. We show why and how models inspired by asymptotic safety can explain deviations from standard model predictions naturally. Our setup features an enlarged scalar sector and Yukawa couplings between leptons and new vectorlike fermions. Using the complete two-loop running of couplings, we observe a well-behaved high-energy limit of models including a stabilization of the Higgs. We find that a manifest breaking of lepton universality beyond standard model Yukawas is not necessary to explain the muon and electron anomalies. We further predict the tau anomalous magnetic moment and new particles in the TeV energy range, whose signatures at colliders are indicated. With small CP phases, the electron EDM can be as large as the present bound.
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Publication status
- Published
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- Published version
Journal
Physical Review DISSN
2470-0010Publisher
American Physical SocietyExternal DOI
Issue
7Volume
102Page range
1-6Article number
a071901Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2022-03-01First Open Access (FOA) Date
2022-03-01First Compliant Deposit (FCD) Date
2022-02-28Usage metrics
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