Electric dipole moment constraints on CP-violating heavy-quark Yukawas at next-to-leading order
Joachim Brod, Emmanuel Stamou
Abstract
A bstract Electric dipole moments are sensitive probes of new phases in the Higgs Yukawa couplings. We calculate the complete two-loop QCD anomalous dimension matrix for the mixing of CP-odd scalar and tensor operators and apply our results for a phenomenological study of CP violation in the bottom and charm Yukawa couplings. We find large shifts of the induced Wilson coefficients at next-to-leading-logarithmic order. Using the experimental bound on the electric dipole moments of the neutron and mercury, we update the constraints on CP-violating phases in the bottom and charm quark Yukawas.
Topics & Concepts
PhysicsYukawa potentialParticle physicsNeutron electric dipole momentElectric dipole momentDipoleScalar (mathematics)Quantum chromodynamicsQuantum electrodynamicsQuarkCP violationTensor (intrinsic definition)Higgs bosonMixing (physics)Phenomenology (philosophy)Charm quarkScalar potentialTransition dipole momentNeutronOrder (exchange)Moment (physics)Charm (quantum number)Physics beyond the Standard ModelNeutron magnetic momentElectric dipole transitionTop quarkBottom quarkStandard Model (mathematical formulation)Matrix (chemical analysis)Two-Higgs-doublet modelNuclear physicsOperator (biology)Dimension (graph theory)Cabibbo–Kobayashi–Maskawa matrixParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsNeutrino Physics Research