Status and challenges of the Future Circular Hadron Collider FCC-hh

Abstract

The Future Circular Collider (FCC) study was launched as a worldwide international collaboration hosted by CERN with the ultimate goal of pushing the energy frontier far beyond the LHC. FCC covers two accelerators, namely an energy-frontier hadron collider (FCC-hh) and a highest luminosity, high-energy lepton collider (FCC-ee) serving as electroweak Higgs factory, as a possible first stage. The mass of particles that could be either directly produced at FCC-hh or indirectly detected at FCC-ee is increased by an order of magnitude, relative to today's reach, and the subatomic distances that can be resolved are decreased in the same proportion. Importantly, FCC-hh and FCC-ee share the same ∼100 km tunnel infrastructure. This paper focuses on the FCC-hh, summarising its key features, such as accelerator design, performance reach, and underlying technologies. The discussion is based on the 2019 conceptual design report (CDR) [1], which represents a study milestone, but also describes more recent design activities and indicates future directions.

An Initial Look at the Magnetic Design of a 150 mm Aperture High-Temperature Superconducting Magnet With a Dipole Field of 8 to 10 T

“…Studies at the Large Hadron Collider show that the coefficient of cooling performance improves by a factor of 3.5 from 1.9 to 4.5 K and by a factor of 10 from 1.9 to 20 K based on the Carnot factor [13], [14]. The improved cooling efficiency makes future colliders more affordable and sustainable because the cryogenics system for the superconducting magnets is a key power consumer [15]- [17].…”