Effective field theory interpretation of lepton magnetic and electric dipole moments

Abstract

We perform a model-independent analysis of the magnetic and electric dipole moments of the muon and electron. We give expressions for the dipole moments in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT). We use one-loop renormalization group improved perturbation theory, including the one-loop matching from SMEFT onto LEFT, and one-loop lepton matrix elements of the effective-theory operators. Semileptonic four-fermion operators involving light quarks give sizable non-perturbative contributions to the dipole moments, which are included in our analysis. We find that only a very limited set of the SMEFT operators is able to generate the current deviation of the magnetic moment of the muon from its Standard Model expectation.

34 pages, 7 figures; v2: numbers updated to new experimental value for g-2; version published in JHEP

References in corpus (20)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Measurement of the fine-structure constant as a test of the Standard Model
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
• Improved limit on the permanent electric dipole moment of 199Hg
• The muon $g$-2 and $\Delta \alpha$ connection
• Renormalization group evolution of dimension-six baryon number violating operators
• Renormalization-group evolution of new physics contributions to (semi)leptonic meson decays
• Compilation of low-energy constraints on 4-fermion operators in the SMEFT
• Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD
• The muon g-2 and the bounds on the Higgs boson mass
• Constraints on the two-pion contribution to hadronic vacuum polarization
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Impact of correlations between $a_{\mu }$ and ${\alpha }_{QED}$ on the EW fit
• On Constraints Between $\Delta {\alpha }_{\mathrm{had}}(M_Z^2)$ and $(g_{\mu }-2{)}_{\mathrm{HVP}}$
• Search for a muon EDM using the frozen-spin technique
• Physics potential of a muon-proton collider
• Non Perturbative Effects in QCD
• Matrix elements of the electromagnetic operator between kaon and pion states
• Computing Tools for the SMEFT

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• SMEFT deviations
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