The goal of the PanEDM experiment is to measure the neutron electric dipole moment (nEDM). The hypothetical existence of such a dipole moment would add a source of CP violation, which is one of the condition to explain the preeminence of matter over antimatter in the Universe.
Contrary to the n2EDM experiment that relies on the feedback of a predecessor, PanEDM chose to develop an experiment of the measurement of the nEDM based on new technologies. Choice was notably made to get rid of mercury co-magnetometry, which is usually used to improve the control on the magnetic field at the cost of important systematic effects. As a tradeoff, on top of using a double precession chamber, the magnetic field has to be extremely stable and well characterized.
The new UCN source of ILL will deliver the Ultra-Cold Neutrons (UCN) used by the experiment. This superthermal superfluid helium source is supposed to deliver 3.9 neutrons/cm$^3$ to PanEDM during phase I. During this phase, a 1.7-T non-superconductor magnet will polarized the neutrons and a three-way switch will transmit them to the precession chambers. After 250s of precession, the same three-way switch will guide them to the spin analyzers and the GEM-membrane CASCADE detectors. Tha 100-day expected statistical sensitivity is 3.8x$10^{-27}$ ecm.
After this first phase, both SuperSUN and PanEDM will be upgraded to reach a statistical sensitivity of 7.9x$10^{-28}$ e.cm.
I will today present the various components of the experiment and their status, in particular the work that is currently in progress.
