Screening of nucleon electric dipole moments in atomic systems
Kota Yanase
Abstract
The electric dipole moments (EDMs) of diamagnetic atoms are expected to be sensitive to charge-parity violation, particularly in nuclei through the nuclear Schiff moment. I explicitly demonstrate that the well-known form of the Schiff moment operator originating from the nucleon EDM is obtained by considering the screening of the nucleon EDMs in a neutral atom. Consequently, an additional contribution to the Schiff moment arises from the screening of the nuclear EDM induced by the interaction of the nucleon EDMs with the protons. This correction to the Schiff moment of $^{199}\mathrm{Hg}$ is evaluated in the independent particle model.
Topics & Concepts
NucleonDipoleElectric dipole momentPhysicsNuclear magnetic momentDiamagnetismParity (physics)Bond dipole momentAtomic physicsMoment (physics)Nuclear physicsParticle physicsElectron magnetic dipole momentMagnetic dipoleQuantum mechanicsMagnetic fieldAtomic and Subatomic Physics ResearchNuclear physics research studiesAdvanced NMR Techniques and Applications