Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-05-31
Nucl.Phys. B708 (2005) 511-531
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages in LaTeX, 5 eps figures, fits improved, version to appear in NUPHB
Scientific paper
10.1016/j.nuclphysb.2004.12.002
We show that in supersymmetric models with a gauged flavor symmetry explaining the hierarchy of fermion masses and mixings, the electron, muon, neutron and the deuteron acquire sizable electric dipole moments (EDM) through loop diagrams involving the flavor gaugino/gauge boson near the Planck scale. These EDMs are proportional to the phases in the fermion Yukawa couplings and are typically much larger than the neutrino seesaw induced EDM for the leptons. In a popular class of models based on anomalous U(1) flavor symmetry of string origin, we find d_e ~ (10^{-26}-10^{-27}) e cm, d_\mu ~ (10^{-24}-10^{-26}) e cm, d_n ~ 10^{-27} e cm, and d_D ~ (10^{-26}-10^{-27}) e cm, which are within reach of next generation experiments.
Babu K. S.
Enkhbat Ts.
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