Electric Dipole Moments of Dyon and 'Electron'

M. Kobayashi, T. Kugo, T. Tokunaga
2007 Progress of theoretical physics  
The electric and magnetic dipole moments of dyon fermions are calculated within N=2 supersymmetric Yang-Mills theory including the theta-term. It is found, in particular, that the gyroelectric ratio deviates from the canonical value of 2 for the monopole fermion (n_m=1,n_e=0) in the case theta\not=0. Then, applying the S-duality transformation to the result for the dyon fermions, we obtain an explicit prediction for the electric dipole moment (EDM) of the charged fermion ('electron'). It is
more » ... ectron'). It is thus seen that the approach presented here provides a novel method for computing the EDM induced by the theta-term.
doi:10.1143/ptp.118.921 fatcat:nizii7k635e2xgtjlxwjjz3dei