The LHC has helped complete the Standard Model; it has also left open some gaping holes. Among these are any prediction of dark matter, a sufficient source for the matter, and antimatter imbalance in the universe or an adequate explanation of neutrino mass. In this talk, I will describe experimental techniques that use beta decay at ultracold…

The radioactive radium-225 (225Ra) atom is a favorable system to search for a permanent electric dipole moment (EDM). Due to its strong nuclear octupole deformation and large atomic mass, 225Ra is particularly sensitive to interactions in the nuclear medium that violate both time-reversal symmetry and parity. We have developed a cold-atom…