The ATLAS Collaboration at CERN has officially entered the High-Luminosity (HL) era following the end of the Large Hadron Collider’s third data collection run on 27 June 2026. Over the coming years, CERN will undertake a major upgrade programme, with particle beams expected to return in 2030. ATLAS is being extensively rebuilt with advanced technologies, including a new all-silicon Inner Tracker, a High-Granularity Timing Detector, upgraded electronics, and powerful GPU-based computing systems, allowing the HL-LHC to dramatically increase collision rates, enabling more precise studies of fundamental particles and forces. In the meantime, the global physics collaboration will analyse the experiment’s largest-ever dataset collected during Run 3 of the LHC: 332 fb⁻¹ of collision data, allowing analysis from precision measurements of the Higgs boson to searches for rare phenomena that could point to physics beyond the Standard Model.
Read more in the ATLAS press release.