We discuss the electric dipole moments (EDM) of fermions generated by CP-violating phases associated to the new Yukawa coupling involving heavy matter E6 fields predicted in the framework of superstring theories. While for neutron and electron it is not strictly necessary to resort to a superstring scenario to get a substantial EDM, in the neutrino case a sizeable EDM is a distinctive feature of the superstring. We thus focus on the neutrino EDM and discuss its relevance for the solution of the solar neutrino problem. © 1987.
|Journal||Physics Letters B|
|Publication status||Published - 30 Apr 1987|