# R&D and Studies

2016-04-17
19:39
 High Gradient $Nb_3Sn$ Quadrupole Demonstrator MKQXF Engineering Design / Kokkinos, C (FEAC Engineering P.C.) ; Karppinen, Mikko (CERN) A new mechanical design concept for the $Nb_3Sn$ quadrupoles has been developed with a goal of an accelerator quality magnet that can be industrially produced in large series. [...] CERN-ACC-NOTE-2016-0039. - 2016. - 46 p. Full text

2016-04-05
21:39
 Containment and resolution of hadronic showers at the FCC / Solans Sanchez, Carlos (CERN) ; Helsens, Clement (CERN) ; Carli, Tancredi (CERN) ; Henriques Correia, Ana Maria (CERN) The particles produced at a potential Future Circular Collider with $\sqrt{s}$ = 100 TeV are of unprecented energies. In this document we present the hadronic shower containment and resolution parametrizations based on Geant4 simulations for the Hadronic calorimetry needed for conceptual detector design at this energy. [...] CERN-ACC-2016-0018.- Geneva : CERN, 2016 Fulltext: PDF;

2016-01-13
13:47
 Status and Challenges of the Future Circular Collider Study / Benedikt, Michael (CERN) ; Zimmermann, Frank (CERN) Following the 2013 update of the European Strategy for Particle Physics, the international Future Circular Collider (FCC) study has been launched by CERN as host institute, to design an energy frontier hadron collider (FCC-hh) in a new 80-100 km tunnel with a centre-of-mass energy of about 100 TeV, an order of magnitude above the LHC's, as a long-term goal. The FCC study also includes the design of a 90-350 GeV high-luminosity lepton collider (FCC-ee) fitting the same tunnel, serving as Higgs, top and Z factory, as a potential intermediate step, as well as an electron-proton collider option (FCC-he). [...] CERN-ACC-2016-0005.- Geneva : CERN, 2016 Fulltext: PDF; In : 12th International Topical Meeting on Nuclear Applications of Accelerators, Washington, DC, USA, 10 - 13 Nov 2015

2016-01-12
10:33
 Towards Future Circular Colliders / Benedikt, Michael (CERN) ; Zimmermann, Frank (CERN) The Large Hadron Collider (LHC) at CERN presently provides proton-proton collisions at a centre-of-mass (c.m.) energy of 13 TeV. The LHC design was started more than 30 years ago, and its physics programme will extend through the second half of the 2030’s. [...] CERN-ACC-2016-0004.- Geneva : CERN, 2015 Fulltext: PDF; In : 19th International Conference on Accelerators and Beam Utilizations, Gyeongju, Republic Of Korea, 4 - 6 Nov 2015

2016-01-08
15:26
 Potential Remedies for the High Synchrotron-Radiation-Induced Heat Load for Future Highest-Energy-Proton Circular Colliders / Cimino, Roberto (Frascati ; CERN) ; Baglin, Vincent (CERN) ; Schaefers, Franz (Helmholtz-Zentrum, Berlin) We propose a new method for handling the high synchrotron radiation (SR) induced heat load of future circular hadron colliders (like FCC-hh). FCC-hh are dominated by the production of SR, which causes a significant heat load on the accelerator walls. [...] CERN-ACC-2016-0003.- Geneva : CERN, 2015 - 6 p. - Published in : Phys. Rev. Lett. 115 (2015) 264804 APS Open Access article: PDF; In : 1st Annual Meeting of the Future Circular Collider study, Washington, DC, USA, 23 - 27 Mar 2015, pp.264804

2015-12-09
16:48
 Optimizing integrated luminosity of future hadron colliders / Benedikt, Michael (CERN) ; Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN) The integrated luminosity, a key figure of merit for any particle-physics collider, is closely linked to the peak luminosity and to the beam lifetime. The instantaneous peak luminosity of a collider is constrained by a number of boundary conditions, such as the available beam current, the maximum beam-beam tune shift with acceptable beam stability and reasonable luminosity lifetime (i.e., the empirical “beam-beam limit”), or the event pileup in the physics detectors. [...] CERN-ACC-2015-0166.- Geneva : CERN, 2015 - 19 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 18 (2015) 101002 APS Open Access article: PDF;

2015-12-04
18:09
 Future Circular Colliders / Benedikt, Michael (CERN) ; Zimmermann, Frank (CERN) In response to a request from the 2013 Update of the European Strategy for Particle Physics, the global Future Circular Collider (FCC) study is preparing the foundation for a next-generation large-scale accelerator infrastructure in the heart of Europe. The FCC study focuses on the design of a 100-TeV hadron collider (FCC-hh), to be accommodated in a new ∼100 km tunnel near Geneva. [...] CERN-ACC-2015-0165.- Geneva : CERN, 2015 Fulltext: PDF; In : 27th International Symposium on Lepton Photon Interactions at High Energies, Ljubljana, Slovenia, 17 - 22 Aug 2015

2015-12-04
17:49
 Future Circular Colliders / Benedikt, Michael (CERN) ; Zimmermann, Frank (CERN) In response to a request from the 2013 Update of the European Strategy for Particle Physics, the global Future Circular Collider (FCC) study is preparing the foundation for a next-generation large-scale accelerator infrastructure in the heart of Europe. The FCC study focuses on the design of a 100-TeV hadron collider (FCC-hh), to be accommodated in a new ∼100 km tunnel near Geneva. [...] CERN-ACC-2015-0164.- Geneva : CERN, 2015 Fulltext: PDF; In : Future Research Infrastructures: Challenges and Opportunities, Varenna, Italy, 8 - 11 Jul 2015

2015-10-13
23:42
 The International Linear Collider Progress Report 2015 / Evans, Lyn (Imperial Coll., London) ; Yamamoto, Akira (KEK, Tsukuba) N/A CERN-ACC-2015-0131 ; IRFU-15-32 ; DESY-15-146 ; FERMILAB-TM-2609 ; IHEP-AC-2015-003 ; IUAC-ILC-2015-01 ; JAI-2015-001 ; JLAB-R-2015-01 ; KEK-2015-004 ; LAL-15-400 ; SLAC-R-1056. - 2015. - 36 p. Full text

2015-10-13
17:20
 Preliminary Collider Baseline Parameters: Deliverable D1.1 / Schulte, Daniel (CERN) This deliverable provides a preliminary specification of the layout and target operation parameters for the FCC-hh hadron collider concept. They serve as starting point for the studies in all work packages. [...] CERN-ACC-2015-0132.- Geneva : CERN, 2015 Fulltext: PDF;

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