We examine contributions from Majorana phases to lepton flavor violating processes in the framework of the minimal supersymmetric standard model with heavy right-handed neutrinos. All phases in the complex neutrino Yukawa matrix are taken into account in our study. We find that in the scenario with universal soft-breaking terms sizable phase effects can appear on the lepton flavor violating processes such as $\mu \to e\gamma$, $\tau \to e\gamma$, and $\tau \to \mu \gamma$. In particular, the branching ratio of $\mu \to e\gamma$ can be considerably enhanced due to the Majorana phases, so that it can be much greater than that of $\tau \to \mu \gamma$.

• Received 22 July 2005
• Publisher error corrected 16 September 2005

DOI:https://doi.org/10.1103/PhysRevD.72.055012