Colored scalars and the neutron electric dipole moment

Abstract

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. We comment also on contributions of higher dimensional operators to the neutron electric dipole moment within this framework.

14 pages, 5 figures, 53 references

References in corpus (14)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• New Physics and CP Violation in Singly Cabibbo Suppressed D Decays
• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• Branching ratios and direct CP asymmetries in $D\to PP$ decays
• Constraints on CP-violating Higgs couplings to the third generation
• Simplified models with baryon number violation but no proton decay
• Cornering New Physics in b --> s Transitions
• EDMs vs. CPV in B_{s,d} mixing in two Higgs doublet models with MFV
• Search for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at sqrt(s) = 7 TeV
• Color Octet Scalar Production at the LHC
• Shedding light on CP violation in the charm system via D to V gamma decays
• On theories of enhanced CP violation in B_s,d meson mixing
• Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC
• Electron Electric Dipole Moment induced by Octet-Colored Scalars

Cited by in corpus (4)

• Renormalizable SU(5) Unification
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• Electric dipole moments from colour-octet scalars
• Electric dipole moment of the neutron in Two Higgs Doublet Models with flavor changing