Speaker
Luca Di Luzio
Description
While the axion was originally introduced to “wash out” CP violation from strong interactions, new sources of CP violation beyond QCD (needed to explain the matter-antimatter asymmetry) might manifest themselves via a tiny scalar axion-nucleon component. The latter can be experimentally probed in axion-mediated force experiments, as suggested long ago by J.E. Moody and F. Wilczek. In the present contribution, I will review CP-violating axion searches and highlight the special role of the QCD axion as a low-energy probe of high-energy sources of CP violation.
