Electric Dipole Moments: A Global Analysis

Abstract

We perform a global analysis of searches for the permanent electric dipole moments (EDMs) of the neutron, neutral atoms, and molecules in terms of six leptonic, semileptonic, and nonleptonic interactions involving photons, electrons, pions, and nucleons. Translating the results into fundamental CP-violating effective interactions through dimension six involving Standard Model particles, we obtain rough lower bounds on the scale of beyond the Standard Model CP-violating interactions ranging from 1.5 TeV for the electron EDM to 1300 TeV for the nuclear spin-independent electron-quark interaction. We show that future measurements involving systems or combinations of systems with complementary sensitivities to the low-energy parameters may extend the mass reach by an order of magnitude or more.

15 pages, 1 figure

References in corpus (5)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Improved limit on the permanent electric dipole moment of 199Hg
• Laser-trapping of Ra-225 and Ra-226 with repumping by room temperature blackbody radiation
• Prospects for an electron electric dipole moment search in metastable ThO and ThF${}^{+}$
• A magnetically shielded room with ultra low residual field and gradient

Cited by in corpus (19)

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• An ${\epsilon }^{\prime }$ improvement from right-handed currents
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• Measurement of the Electric Dipole Moment of ${}^{171}$Yb Atoms in an Optical Dipole Trap
• Spectroscopy on the eEDM-sensitive states of ThF${}^{+}$
• TaO${}^{+}$, a Candidate Molecular Ion in Search of Physics Beyond the Standard Model
• Vacuum energy and the cosmological constant
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• $\mathcal{P},\mathcal{T}$-Violating and Magnetic Hyperfine Interactions in Atomic Thallium