Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-06-07
Phys.Rev. D70 (2004) 073006
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages
Scientific paper
10.1103/PhysRevD.70.073006
We calculate the two-loop diagrams that give a non-zero contribution to the electric dipole moment d_l of a charged lepton l due to possible Majorana masses of neutrinos. Using the example with one generation of the Standard Model leptons and two heavy right-handed neutrinos, we demonstrate that the non-vanishing result for d_l first appears in order O(m_l m_\nu^2 G_F^2), where m_\nu is the mass of the light neutrino and the see-saw type relation is imposed. This effect is beyond the reach of presently planned experiments.
Archambault John Paul
Czarnecki Andrzej
Pospelov Maxim
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