Neutrino CP phases and lepton electric dipole moments in supersymmetric theories

Details Neutrino CP phases and lepton electric dipole moments in supersymmetric theories Neutrino CP phases and lepton electric dipole moments in supersymmetric theories

2003-04-16

arxiv.org/abs/hep-ph/0304164v1

Phys.Lett. B567 (2003) 207-222

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages

Scientific paper

10.1016/j.physletb.2003.06.010

We analyse the dependence of the electron electric dipole moment (EDM) on neutrino CP violating phases in the context of supersymmetric models. We start by studying the supersymmetric contributions to the lepton EDM and lepton flavour violation processes tau -> mu gamma and mu -> e gamma, in the framework of the mass insertion approximation, showing that, due to the large neutrino mixing, mu -> e gamma leads to severe constraints on the relevant mass insertions. We derive model independent bounds on these mass insertions and show that once these bounds are satisfied, the present experimental limits on electron EDM do not constraint the neutrino phases.

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