Phase effects from the general neutrino Yukawa matrix on lepton flavor violation

Details Phase effects from the general neutrino Yukawa matrix on lepton flavor violation Phase effects from the general neutrino Yukawa matrix on lepton flavor violation

2005-07-22

arxiv.org/abs/hep-ph/0507264v1

Phys.Rev. D72 (2005) 055012; Erratum-ibid. D72 (2005) 059904

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 4 eps figures, revtex4

Scientific paper

10.1103/PhysRevD.72.055012

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 $\tau \to \mu \gamma$.

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