A Window on the CP-violating Phases of MSSM from Lepton Flavor Violating Processes

Abstract

It has recently been shown that by measuring the transverse polarization of the final particles in the LFV processes $\mu \to e\gamma$, $\mu \to eee$ and $\mu N\to eN$, one can derive information on the CP-violating phases of the underlying theory. We derive formulas for the transverse polarization of the final particles in terms of the couplings of the effective potential leading to these processes. We then study the dependence of the polarizations of $e$ and $\gamma$ in the $\mu \to e\gamma$ and $\mu N\to eN$ on the parameters of the Minimal Supersymmetric Standard Model (MSSM). We show that combining the information on various observables in the $\mu \to e\gamma$ and $\mu N\to eN$ search experiments with the information on the electric dipole moment of the electron can help us to solve the degeneracies in parameter space and to determine the values of certain phases.

16 pages, 8 figures

References in corpus (4)

• Reconciling large CP-violating phases with bounds on the electric dipole moments in the MSSM
• WMAP-Compliant Benchmark Surfaces for MSSM Higgs Bosons
• Tracing CP-violation in Lepton Flavor Violating Muon Decays
• Electron Electric Dipole Moment from Lepton Flavor Violation

Cited by in corpus (5)

• Leptonic CP violation
• Probing leptonic CP phases in LFV processes
• Time-reversal symmetry violation in several Lepton-Flavor-Violating processes
• Measuring CP-violating phases through studying the polarization of the final particles in $\mu \to eee$
• Extracting the CP-violating phases of trilinear R-parity violating couplings from $\mu \to eee$