Electric dipole moments: a theory overview

Abstract

Electric dipole moments are extremely sensitive probes of physics beyond the Standard Model. A vibrant experimental program is in place, with the goal of improving existing bounds on the electron and neutron electric dipole moments by one or two orders of magnitude, while testing new ideas for the measurement of electric dipole moments of light ions, such as the proton and the deuteron, at a comparable level. The success of this program, and its implications for physics beyond the Standard Model, relies on the precise calculation of the electric dipole moments in terms of the couplings of CP-violating operators induced by beyond-the-Standard-Model physics. In light of the nonperturbative nature of both QCD at low energy and of the nuclear interactions, these calculations have proven difficult, and are affected by large theoretical uncertainties. In this talk I will review the progress that has been achieved on different aspects of the calculation of hadronic and nuclear EDMs, the challenges that remain to be faced, and the implications for our understanding of physics beyond the Standard Model.

Talk presented at CIPANP2018

References in corpus (19)

• A precision measurement of the electron's electric dipole moment using trapped molecular ions
• Low-Energy Effective Field Theory below the Electroweak Scale: Operators and Matching
• Low-Energy Effective Field Theory below the Electroweak Scale: Anomalous Dimensions
• Right-handed charged currents in the era of the Large Hadron Collider
• $K\to \pi \pi$ $\Delta I=3/2$ decay amplitude in the continuum limit
• An ${\epsilon }^{\prime }$ improvement from right-handed currents
• Neutral Kaon Mixing Beyond the Standard Model with $n_f=2+1$ Chiral Fermions Part 1: Bare Matrix Elements and Physical Results
• Heavy physics contributions to neutrinoless double beta decay from QCD
• Reexamination of The Standard Model Nucleon Electric Dipole Moment
• The electric dipole moment of the deuteron from the QCD $\theta$-term
• Full QCD calculation of neutron electric dipole moment with the external electric field method
• Nuclear Electric Dipole Moment of 3He
• Enhancement of the CP-odd effect in the nuclear electric dipole moment of ${}^6$Li
• Neutrinoless double beta decay and chiral $SU(3)$
• Lattice QCD spectroscopy for hadronic CP violation
• Strong isospin violation and chiral logarithms in the baryon spectrum
• Calculation of Nucleon Electric Dipole Moments Induced by Quark Chromo-Electric Dipole Moments
• Beyond-the-Standard-Model matrix elements with the gradient flow
• Effective Field Theory and Time-Reversal Violation in Light Nuclei

Cited by in corpus (1)

• Parity- and time-reversal-violating nuclear forces