Colored scalars and the neutron electric dipole moment

Understand

We investigate new contributions to the neutron electric dipole moment induced by colored scalars.

• As an example, we evaluate contributions coming from the color octet, weak doublet scalar, accommodated within a modified Minimal Flavor Violating framework.
• These flavor non-diagonal couplings of the color octet scalar might account for the $A_{CP} (D^0 \to K^- K^+) - A_{CP} (D^0 \to \pi^+ \pi^-)$ asymmetry on the tree level.
• Using these charm asymmetry constrained couplings, we calculate two-loop contributions to the neutron electric dipole moment and find that they are of the same order as the experimental bound.