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The two-loop supersymmetric corrections to lepton anomalous magnetic and electric dipole moments

Tai-Fu Feng·Xue-Qian Li·Lin Lin·Jukka Maalampi·He-Shan Song
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Abstract

Using the effective Lagrangian method, we analyze the electroweak corrections to the anomalous dipole moments of lepton from some special two-loop topological diagrams which are composed of neutralino (chargino) - slepton (sneutrino) in the minimal supersymmetric extension of the standard model (MSSM). Considering the translational invariance of the inner loop momenta and the electromagnetic gauge invariance, we get all dimension 6 operators and derive their coefficients. After applying equations of motion to the external leptons, the anomalous dipole moments of lepton are obtained. The numerical results imply that there is a parameter space where the two-loop supersymmetric corrections to the muon anomalous dipole moments may be significant.

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Tai-Fu Feng, Xue-Qian Li, Lin Lin, Jukka Maalampi, He-Shan Song. 2006-04-20. The two-loop supersymmetric corrections to lepton anomalous magnetic and electric dipole moments. https://doi.org/10.1103/physrevd.73.116001

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