The Future Circular Collider Feasibility Study

The Future Circular Collider (FCC) program, proposed at CERN for the post-LHC era, consists of a luminosity-frontier electron-positron collider (FCC-ee) as a first stage, followed by an energy-frontier hadron collider (FCC-hh) as the second stage. FCC-ee is conceived as a precision instrument to study the Z, W, and Higgs bosons, along with the top quark, offering unprecedented sensitivity to signs of new physics. Most of the FCC-ee infrastructure could later be reused for the subsequent hadron collider, FCC-hh, which would provide proton-proton collisions at a centre-of-mass energy of 100 TeV, allowing the direct production of new particles with masses of up to several tens of TeV. The two stages of the FCC will enable frontier physics studies through the end of the 21st century.

The 2020 Update of the European Strategy for Particle Physics has requested a feasibility study of the FCC colliders and their common infrastructure to be conducted as a global endeavor and completed on the timescale of the next Strategy Update expected by 2026. The FCC Feasibility Study was formally launched in summer 2021.

This presentation will summarize the status and plan for the FCC Feasibility Study, including  ongoing infrastructure studies and the designs for both FCC-ee and FCC-hh. It will cover the machine concepts for lepton and hadron collider, recent placement and layout optimization, critical site investigations, R&D for key technologies, and a possible implementation schedule.