Abstract:
Time-reversal symmetry (T) breaking due to undiscovered new physics can couple to gluons, which in turn modulates the interactions between protons and neutrons in a nucleus. The net effect of this T-violation is a characteristic moment of the nuclear charge distribution called a "Schiff moment". My group is working on a nuclear T-violation search using europium-153, a nucleus that is predicted to have a large Schiff moment in response to perturbations from beyond-Standard-Model physics.
We measure spin resonances of 153-europium nuclei contained within electrically-polarized ions in a crystal, and use the resonance frequencies to extract the nuclear Schiff moment. I will discuss our experimental approach and present some recent results.
Speaker: Amar Vutha, University of Toronto
Faculty host: TBA
Keywords: CFP, Physics