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Paper   IPM / Physic / 7873
School of Physics
  Title:   Can Measurements of Electric Dipole Moments Determine the Seesaw Paramaters?
  Author(s): 
1.  D. A. Demir
2.  Y. Farzan
  Status:   Published
  Journal: JHEP
  Vol.:  10
  Year:  2005
  Pages:   068
  Supported by:  IPM
  Abstract:
In the context of the supersymmetrized seesaw mechanism embedded in the Minimal Supersymmetric Standard Model (MSSM), complex neutrino Yukawa couplings can induce Electric Dipole Moments (EDMs) for the charged leptons, providing an additional route to seesaw parameters. However, the complex neutrino Yukawa matrix is not the only possible source of CP violation. Even in the framework of Constrained MSSM (CMSSM), there are additional sources, usually attributed to the phases of the trilinear soft supersymmetry breaking couplings and the mu-term, which contribute not only to the electron EDM but also to the EDMs of neutron and heavy nuclei. In this work, by combining bounds on various EDMs, we analyze how the sources of CP violation can be discriminated by the present and planned EDM experiments.

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