Speaker
Description
Astrophysical observations suggest that the Standard Model of particle physics is incomplete. The abundance of matter over antimatter in the universe requires new physics that violates time-reversal (T) symmetry. Moreover, axionlike particles, a well-motivated dark matter candidate, produce oscillating T-violation. Gluon couplings to new particles or fields lead to T-violating nuclear moments, which can be measured through their effect on the hyperfine structure of atomic ions in a crystal. In our experiment, we use optical transitions to measure these effects. To perform the precision spectroscopy, we have developed a stable laser system and an optical cryostat. In this poster we present the experimental setup and discuss recent measurements.
| Keyword-1 | time-reversal (T) violation |
|---|---|
| Keyword-2 | beyond Standard Model physics |
| Keyword-3 | dark matter |