Speaker
Description
The precision of experiments searching for electric dipole moments of paramagnetic molecules has increased rapidly over the last decade or so. While these increasingly precise bounds are usually translated to upper bounds on the electron EDM, paramagnetic EDMs also receive contributions through CP-violating electron-nuclear interactions. These effective interactions dominantly arise from hadronic sources of CP violation, like the QCD theta term and nucleon EDMs. Calculating electron-nuclear interactions involving meson exchanges (on which I focus in this talk) or nucleon EDMs, we have been able to translate paramagnetic EDM measurements to bounds on various hadronic sources of CP violation. While currently less stringent than equivalent bounds from diamagnetic atom and neutron EDM searches, we stress that the paramagnetic bounds are completely independent, and will be crucial in disentangling possible underlying sources of CP violation when non-zero EDM measurements appear.