Possible Suppression of Neutron EDM
Abstract
Employing generalized Schiff's transformation on electric dipole moments (EDM) in quantum field theory, we show that the chromoelectric EDM lagrangian density is transformed into the electric EDM term with a new coefficient. Under the new constraint on the EDM operators, the neutron EDM can be described by a unique combination of electric EDM df and chromoelectric EDM df of quarks. If the special relation of df=ef2gs df holds, then the neutron EDM is suppressed significantly.
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