Future Large Circular Colliders

Abstract

The last European Strategy for Particle Physics defined an e+e- Higgs factory as the highest priority for the future of particle physics. The best choice is that of a circular collider, which can provide much higher luminosities and can explore the whole range of electroweak physics, being therefore much more than just a Higgs factory.

There are two such projects in the world, the Future Circular Collider (FCC) being proposed at CERN, and the Circular Electron Positron Collider (CEPC), proposed to be located in a newly built laboratory in China. These colliders would be about 100 km in circumference and capable of producing e+e- collisions ranging in center-of-mass energy from the Z0 peak all the way to just above the ttbar threshold. Both infrastructures would operate in two phases, the first one colliding electrons and positrons (FCC-ee and CEPC) and then in a second phase installing a proton-proton collider (FCC-hh and SPPC) reaching center-of-mass energies above 100 TeV. The speaker will also describe a detector concept, suitable for both FCC-ee and CEPC, called Innovative Detector for E+e- Accelerator (IDEA).


About the Speaker

Dr. Paolo GIACOMELLI is an experimental particle physicist working at INFN Bologna. He has more than 40 years of experience in high energy physics, and has participated in several experiments: UA1, UA6, DELPHI, OPAL and CMS. He has given many important contributions and has had many important roles in all these experiments. He is also actively involved in managing several large EU funded projects, mainly on R&D for detectors for particle physics. Since a decade, he is also active in studies for a future large leptonic collider. He collaborates with FCC-ee and CEPC and since 2024 leads the Italian activities on R&D for future circular colliders. He is also responsible for IDEA, a detector concept designed especially for FCC-ee and/or CEPC. Dr. Giacomelli has also organized many important conferences in Bologna, like ICHEP in 2022 and LHCP in 2019.


About the Center for Fundamental Physics

For more information, please refer to https://cfp.hkust.edu.hk/.


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