Speaker
Bassam Nima
(University of Toronto)
Description
Searches for time-reversal (T) violation in atoms and molecules can place stringent limits on physics beyond the Standard Model. In our experiments, we search for T-violation using europium nuclei doped into a crystal, taking advantage of three effects: a) the octupolar 153Eu nucleus has high sensitivity to new physics sources of T-violation, b) the large number of ions in the crystal lead to high precision, and c) the symmetries of the crystal offer new ways to suppress systematic errors. I will present an introduction to our experiment and discuss our measurements of axionlike dark matter and the nuclear Schiff moment of 153Eu.