Radiative lepton mass and muon g − 2 with suppressed lepton flavor and CP violations

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Abstract

The recent experimental status, including the confirmation of the muon g − 2 anomaly at Fermilab, indicates a Beyond Standard Model (BSM) satisfying the following properties: 1) it enhances the g − 2 2) suppresses flavor violations, such as μ → eγ, 3) suppresses CP violations, such as the electron electric dipole moment (EDM). In this letter, I show that the eigenbasis of the mass matrix and higher dimensional photon operators can be automatically aligned if the masses of heavy leptons are generated radiatively together with the g − 2. As a result, the muon g − 2 is enhanced but the EDM of the electron and μ → eγ rate are naturally suppressed. Phenomenology and applications of the mechanism to the B-physics anomalies are argued.

Original languageEnglish
Article number43
JournalJournal of High Energy Physics
Volume2021
Issue number8
DOIs
Publication statusPublished - 2021 Aug

Keywords

  • Beyond Standard Model
  • Cosmology of Theories beyond the SM
  • CP violation
  • Supersymmetric Standard Model

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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