A note on Majorana neutrinos, leptonic CKM and electron electric dipole moment

Abstract

The electric dipole moment of the electron, $d_e$, is known to vanish up to thre e-loops in the standard model with massless neutrinos. However, if neutrinos are massive Majorana particles, we obtain the result that $d_e$ induced by leptonic CKM mechanism is non-vanishing at two-loop order, and it applies to all massive Majorana neutrino models.

arXiv comment7 pages and 1 figure

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