The Darkside-20k experiment

DarkSide-20k is a next-generation multi-ton dark matter experiment currently being built at the INFN Gran Sasso National Laboratory (LNGS). Building on the success of the DarkSide-50 detector, which has been in operation since 2015, DarkSide-20k will feature a dual-phase Liquid Argon Time Projection Chamber (TPC) with a 20-tonne fiducial mass (50-tonne active), designed to achieve unprecedented sensitivity in direct dark matter detection. The experiment incorporates advanced technologies essential for large-scale dark matter searches, including ultra-low-radioactivity underground argon (depleted of $^{39}$Ar) and large-area cryogenic Silicon Photomultipliers with custom, compact electronics for light detection. Additionally, a global radiopurity assay program is in place to ensure minimal background contamination in construction materials. The TPC will be housed inside a membrane cryostat containing over 700 tonnes of liquid argon and surrounded by an active neutron veto. DarkSide-20k aims to achieve a WIMP-nucleon cross-section exclusion sensitivity of $6.5\times10^{-48}$ cm$^2$ for a 1 TeV/c² WIMP over a 200 tonne-year exposure, with no instrumental backgrounds. This work will provide updates on the ongoing construction and the current status of the DarkSide-20k project, along with a discussion of its expected sensitivity