Muon anomalous magnetic moment and lepton flavor violation in MSSM

Abstract

We give a thorough analysis of the correlation between the muon anomalous magnetic moment and the radiative lepton flavor violating (LFV) processes within the minimal supersymmetric standard model. We find that in the case when the slepton mass eigenstates are nearly degenerate, $\delta a_{\mu }$, coming from SUSY contributions, hardly depends on the lepton flavor mixing and, thus, there is no direct relation between $\delta a_{\mu }$ and the LFV processes. On the contrary, if the first two generations' sleptons are much heavier than the 3rd one, i.e., in the effective SUSY scenario, the two quantities are closely related. In the latter scenario, the SUSY parameter space to account for the experimental $\delta a_{\mu }$ is quite different from the case of no lepton flavor mixing. Especially, the Higgsino mass parameter $\mu$ can be either positive or negative.

22 pages, 9 figures; Some discussions are modified

References in corpus (8)

• Precise Measurement of the Positive Muon Anomalous Magnetic Moment
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
• Muon anomalous magnetic dipole moment in supersymmetric theories
• Confronting Spectral Functions from e+e- Annihilation and tau Decays: Consequences for the Muon Magnetic Moment
• Implications of Muon g-2 for Supersymmetry and for Discovering Superpartners Directly
• The SM prediction of g-2 of the muon
• Lepton Flavor Violation in the SUSY-GUT Models with Lopsided Mass Matrix
• Muon anomalous magnetic moment from effective supersymmetry

Cited by in corpus (2)

• Non-Thermal Production of WIMPs, Cosmic $e^{\pm }$ Excesses and $\gamma$-rays from the Galactic Center
• LFV and g-2 in non-universal SUSY models with light higgsinos