Constraining CP violating nucleon-nucleon long-range interactions in diatomic eEDM searches and chiral molecules

The searches for CP violating effects in diatomic molecules are typically interpreted as a probe of the electron's electric dipole moment, a new electron-nucleon interaction, and a new electron-electron interaction. However, in the case of non-vanishing nuclear spin, a new CP violating nucleon-nucleon long-range force will also affect the measurement. I will discuss our use of the HfF+ eEDM result to set a new bound on this hypothetical interaction, which is the most stringent from terrestrial experiments. These multiple new physics sources motivate independent searches in different molecular species for CP violation at low energy that result in model-independent bounds, insensitive to cancellation among them. I will discuss using precision spectroscopy of chiral molecules to constrain such a new CP violating nucleon-nucleon long-range force.