Enhanced contribution to quark and neutron electric dipole moments with small mixing of right-handed currents and CKM CP violation
Yi Liao, Xiaoyuan Li
Abstract
We study the light quark and the neutron electric dipole moments (EDMs) under the assumptions that the CP source is still in the usual CKM matrix and that there is a small mixing of right-handed charged currents in the quark sector. We find that the EDMs arise already at two loop order that are much larger than the standard model (SM) result even for a small mixing.
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