Lepton flavor violation in the Standard Model with general dimension-six operators

Abstract

We study lepton flavor observables in the Standard Model (SM) extended with all dimension-6 operators which are invariant under the SM gauge group. We calculate the complete one-loop predictions to the radiative lepton decays μ → eγ, φ → μγ and φ → eγ as well as to the closely related anomalous magnetic moments and electric dipole moments of charged leptons, taking into account all dimension-6 operators which can generate lepton flavor violation. Also the 3-body flavor violating charged lepton decays φ± → μ±μ+μ,φ± → e±e+e, φ± → e±μ+μ, φ± → μ±e+e, φ± → eμ±μ±, φ± → μe±e± and μ± → e±e+e and the Z0 decays Z0 → +i j are considered, taking into account all tree-level contributions. © The Authors.