Speaker
Description
Ultracold neutrons (UCNs) are an ideal tool to measure the fundamental properties of neutrons, like their electric dipole moment (EDM). A non-zero neutron EDM would be an indication of CP violation beyond the Standard Model and provide a possible explanation of the observed matter-antimatter asymmetry in the universe. However, these searches are limited by the number of UCNs that are delivered by a handful of sources worldwide. The TRIUMF UltraCold Advanced Neutron (TUCAN) collaboration is in the final stages of commissioning a new UCN source using a superfluid-helium converter and driven by a dedicated 20kW neutron spallation target. With an expected production rate of $1.4\cdot10^7\,\mathrm{UCN/s}$ it will be the world’s strongest ultracold neutron source and enable the search for an nEDM with a sensitivity of $10^{-27}\,e\,\mathrm{cm}$—an improvement of one order of magnitude over the best current measurement—within 400 beam days. A secondary beam port will be made available as a user facility.
This presentation will present the significant progress made in commissioning the TUCAN source and the subsystems for the TUCAN EDM experiment, including its large magnetically shielded room.
