CERN Accelerating science

R&D and Studies

Study of the beam induced vacuum effects in the cryogenic beam vacuum chamber of the Future Circular Hadron Collider / Bellafont, Ignasi
The Future Circular Hadron Collider (FCC-hh) is a proposal for a 100 km long hadron collider conceived as the successor of the Large Hadron Collider (LHC). The FCC- hh is designed to reach 50 TeV of beam energy, greatly surpassing the current energy frontier set by the LHC at 7 TeV. [...]
CERN-THESIS-2020-396.- 149 p. Fulltext: PDF; External link: Approve this document (restricted)

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Photostimulated desorption performance of the future circular hadron collider beam screen / González, L A (CERN) ; Baglin, V (CERN) ; Chiggiato, P (CERN) ; Garion, C (CERN) ; Kersevan, R (CERN) ; Casalbuoni, S (KIT, Karlsruhe ; European XFEL, Hamburg) ; Grau, A (KIT, Karlsruhe) ; de Jauregui, D Saez (KIT, Karlsruhe) ; Bellafont, I (CELLS - ALBA, LLS) ; Pérez, F (CELLS - ALBA, LLS)
Synchrotron radiation (SR) originated at superconducting bending magnets is known to be at the origin of several beam detrimental effects related to vacuum instabilities. One of the major challenges in the design of the vacuum beam pipes of high-energy hadron colliders is the SR coping strategy. [...]
2021 - 9 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 113201 Fulltext: PDF;

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The challenges of beam polarization and keV-scale centre-of-mass energy calibration at the FCC-ee / Blondel, Alain (U. Geneva (main) ; Paris U., VI-VII) ; Gianfelice, Eliana (Fermilab)
The capability to determine the FCC-ee centre-of-mass energies (ECM) at the ppm level using resonant depolarization of the beams is essential for the Z line shape measurements, the W mass and the possible observation of the Higgs boson s-channel production. A first analysis (Blondel A et al Polarization and centre-of-mass energy calibration at FCC-ee. arXiv:1909.12245) demonstrated the feasibility of this programme, conditional to careful preparation and a number of further developments. [...]
2021 - 9 p. - Published in : Eur. Phys. J. Plus 136 (2021) 1103 Fulltext: PDF;
In : Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery, pp.1103

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IR challenges and the machine detector interface at FCC-ee / Boscolo, Manuela (CERN ; Frascati) ; Burkhardt, Helmut (CERN) ; Oide, Katsunobu (KEK, Tsukuba) ; Sullivan, Michael K (SLAC)
The FCC-ee, with its unprecedented luminosity goal and high energy reach, creates challenges and requires solutions to many issues in order to produce a realistic design for the complex machine detector interface. The interaction region design for the FCC-ee adopts the crab-waist collision scheme and proposes an elegant local chromaticity correction system [...]
2021 - 9 p. - Published in : Eur. Phys. J. Plus 136 (2021) 1068 Fulltext: PDF; External link: Fulltext
In : Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery, pp.1068

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FCC: Building on the shoulders of giants / Myers, Stephen (CERN ; ADAM, Geneva)
The plethora of open questions in particle physics, the new chapter opened by the Higgs boson, and the lack of clear theoretical guidance as to where new theory could lie call for a broad and diverse experimental programme boosting the intensity and energy-frontier. The proposed FCC-integrated programme consisting of a luminosity-frontier highest-energy lepton collider followed by an energy-frontier hadron collider promises the most far-reaching particle physics programme that foreseeable technology can deliver. In this essay, particular emphasis is given to the lessons from the predecessor of the LHC, LEP, which was commissioned in 1989 and finished operation in November 2000..
2021 - 12 p. - Published in : Eur. Phys. J. Plus 136 (2021) 1076 Fulltext: PDF;

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Book cover Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery : Part I: The Next Big Leap: Accelerator Technologies for the Precision Frontier
Springer, 2021.

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Thermodynamic and technological optimization of complex cryogenic insulation systems / Venturi, Valentina
Future accelerators like the Future Circular Collider (FCC) [24] under study at CERN, will be considerably larger than the Large Hadron Collider (LHC) [18] presently in operation, with consequently increasing demands for cryogenically ef- ficient cryostat solutions [...]

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Da LHC a FCC: Un nuovo sistema di acceleratori per il futuro della fisica delle alte Energie / Tonelli, Guido (INFN, Pisa ; Pisa U. ; CERN)
The discovery of the Higgs boson marks the triumph of the Standard Model of fundamental interactions. However, despite the unquestionable success, the theory contains no convincing explanation for dark matter and dark energy, asymmetry between matter and antimatter and other important phenomena that characterize our universe. [...]
2019 - 10 p. - Published in : Nuovo Saggiatore: 35 (2019) , no. 5-6, pp. 17-26 Fulltext: PDF; External link: Full journal issue

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New physics at the FCC-ee: indirect discovery potential / de Blas, Jorge (Granada U., Theor. Phys. Astrophys. ; Durham U., IPPP)
We review the projected sensitivity to physics beyond the Standard Model via indirect searches at the Future e+e− Circular Collider (FCC-ee). The indirect sensitivity to new physics is discussed both from a model-independent perspective, using the formalism of Effective Field Theories, but also from the point of view of more specific classes of well-motivated models..
2021 - 8 p. - Published in : Eur. Phys. J. Plus 136 (2021) 897 Fulltext: PDF;
In : Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery, pp.897

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Book cover Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery : Part III: Theoretical Challenges
Springer, 2021.

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PBC - Physics Beyond Colliders (53)
Future Circular Collider Documents (186)
Muon Collider study (3)