Limits on $CP$-violating hadronic interactions and proton EDM from paramagnetic molecules

V. V. Flambaum, I. B. Samsonov, H. B. Tran Tan

Experiments with paramagnetic ground or metastable excited states of molecules (ThO, HfF${}^{+}$, YbF, YbOH, BaF, PbO, etc.) provide strong constraints on electron electric dipole mome…