Abstract
In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre-of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries.
Highlights
At of the heart of mass energy t√he sHE-Large Hadron Collider (LHC) project is = 27 TeV, and to a pp collider, designed collect of the order of to operate at a centre 15 ab−1 of data during 20 years of operation
The HE-LHC injection system is strongly dependent on injection energy
At 1300 GeV there is an impact on experimental β* reach, and the kicker and septum performance are pushed, with SC septa as the baseline
Summary
It is believed that with an appropriate R&D programme and if all magnets are cold tested before installation, this margin will be sufficient to achieve the nominal energy of the HE-LHC with limited magnet training This technology, though not yet used in particle colliders, is being implemented for dipoles and quadrupoles of the HL-LHC project, where they will be operating at peak fields of between 11 and 12 T. The subsequent preparatory phase will focus on the development of the implementation plans, relying on credible designs that need to be based on a set of technologies that enable the research infrastructure to be built At this stage, any project of such scale, ambition and with a long-term vision spanning many decades, comprises a number of uncertainties with different probabilities and potential impact. The immediate step, the design phase, will include the development of a technically achievable and coherent blueprint, which successfully responds to the requirements and concepts presented at this first stage
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