Speaker
Description
Permanent electric dipole moments probe the joint violation of parity and time-reversal symmetries, collecting many potential sources into a single low-energy observable. Although the Standard Model predicts finite values in many systems, these are too small for present-day experiments to detect.
Experimental results consistent with zero are thus interpreted, via the CPT theorem, as constraining the new sources of CP-violation required to generate the cosmological baryon asymmetry. Complementary results from many different experiments are needed to jointly constrain high-energy CP-violation, using global analysis to confront the multi-scale problem of interpreting low-energy experimental data.
I will discuss the experimental status today, focusing especially on precision measurements using neutrons and diamagnetic atoms. New technological developments, prospects for improved measurements, and connections to other observables will be mentioned.
