Isabelle De Bruyn: "IIHE Invited seminar: Searching for light dark matter and dark sectors with the NA64 experiment"

Abstract: The NA64 experiment at the CERN SPS is looking for light dark matter and other BSM physics below the electroweak scale, dark sectors predominantly coupled to the second lepton generation, and leptophobic dark sectors predominantly coupled to light SM quarks. It is a fixed target experiment with an active beam dump, and mainly makes use of the missing energy signature. It has been operational since 2016 using electron beams, and is now also producing results using muon and positron beams. In addition, a proof-of-concept search was performed in 2024 using pion, kaon, and proton beams. This talk will give an overview of the current NA64 setups, a selection of recent results, and an outline of the future upgrades for high intensity running after long shutdown 3.