QCD and $\gamma \gamma$ studies at FCC-ee

Abstract

The Future Circular Collider (FCC) is a post-LHC project aiming at searches for physics beyond the SM in a new 80--100~km tunnel at CERN. Running in its first phase as a very-high-luminosity electron-positron collider (FCC-ee), it will provide unique possibilities for indirect searches of new phenomena through high-precision tests of the SM. In addition, by collecting tens of ab${}^{-1}$ integrated luminosity in the range of center-of-mass energies $\sqrt{s}$~=90--350~GeV, the FCC-ee also offers unique physics opportunities for precise measurements of QCD phenomena and of photon-photon collisions through, literally, billions of hadronic final states as well as unprecedented large fluxes of quasireal $\gamma$'s radiated from the ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ beams. We succinctly summarize the FCC-ee perspectives for high-precision extractions of the QCD coupling, for detailed analyses of parton radiation and fragmentation, and for SM and BSM studies through $\gamma \gamma$ collisions.

Comments: 6 pages, Proceedings ICHEP'16 (Chicago)