Event Details

Starting around 2026, the High-Luminosity LHC (HLLHC) will deliver proton-proton collisions at a centerof-mass energy of \sqrt{s} = 14 TeV. The ATLAS and CMS detectors are being upgraded for the HL-LHC running conditions to support a broad physics program in the presence of significantly increased pileup (~200). A comprehensive campaign to understand the physics reach of the experiment at the HL-LHC and a possible higher energy LHC (HE-LHC) at 27 TeV was mounted in 2018. I will summarize the recent work documented in the CERN Yellow Report to the European Strategy group for future of particle physics, which represents an LHC-wide effort of experimentalists and theorists with the aim to to review and further refine the understanding of the physics potential of the HighLuminosity LHC, explore the physics landscape at the High-Energy LHC.