A new measurement of the permanent electric dipole moment of $^{129}$Xe using $^{3}$He comagnetometery and SQUID detection

Permanent electric dipole moment (EDM) measurements of $^{129}$Xe, along with other diamagnetic systems and the neutron, constrain beyond-the-standard-model hadronic CP-violating parameters. In the HeXeEDM experiment, a new technique is used to measure the EDM of $^{129}$Xe with a $^3$He comagnetometer. $^3$He and $^{129}$Xe are polarized using spin-exchange optical pumping, transferred to a measurement cell and transported into a magnetically shielded room. The free precession of both species is detected with SQUID magnetometers in the presence of an applied $2.7-3.3~$kV/cm electric field and a $2.6~\mathrm{\mu T}$ magnetic field. Comagnetometer imperfections are compensated for in combinations of four or eight high-voltage polarity segments. The latest result will be reported.