2026-06-10
10:44 |
Heavy Quarks in a Can and the QCD Coupling
/ Dalla Brida, Mattia (CERN) ; Höllwieser, Roman (Bergische U., Wuppertal (main)) ; Knechtli, Francesco (Bergische U., Wuppertal (main)) ; Korzec, Tomasz (Bergische U., Wuppertal (main)) ; Nada, Alessandro (U. Turin (main)) ; Ramos, Alberto (U. Valencia (main)) ; Sint, Stefan (Trinity Coll., Dublin) ; Sommer, Rainer (Humboldt U., Berlin (main) ; DESY)
The Lambda parameter of three flavor QCD is obtained by computing the running of a renormalized finite volume coupling from hadronic to very high energies where connection with perturbation theory can safely be made. The theory of decoupling allows us to perform the bulk of the computation in pure gauge theory. [...]
2023-04-06 - 10 p.
- Published in : 10.22323/1.430.0286
In : 39th International Symposium on Lattice Field Theory (Lattice 2022), Bonn, Germany, 8 - 13 Aug 2022, pp.286
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2026-06-10
06:36 |
Particle adhesion assessment based on a diverted use of laser shock adhesion test (LASAT) to apply inertia force relying on dynamics of the sample macroscopic surface
/ Baudin, Lucie (CERN) ; Garion, Cedric (CERN) ; Chiggiatto, Paolo ; Delloro, Francesco (Paris, Ecole des Mines) ; Jeandin, Michel (Paris, Ecole des Mines) ; Thorel, Alain (Paris, Ecole des Mines) ; Boustie, Michel (CNRS, France)
Laser-assisted surface structuring was developed at CERN for the treatment of the inside wall of the vacuum system of the Large Hadron Collider (LHC). 50-µm-deep grooves were created by material ablation while the laser scanned the surface. [...]
2024 - 4 p.
- Published in : Proc. SPIE 12939 (2024) 129390L
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2026-06-10
06:36 |
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2026-06-10
06:36 |
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2026-06-10
06:36 |
Status and Perspectives for FCC-ee Detector Background Studies
/ Boscolo, Manuela (Frascati) ; André, Kevin (ESRF, Grenoble) ; Broggi, Giacomo (Frascati ; CERN ; U. Rome La Sapienza (main)) ; Ciarma, Andrea (Frascati) ; Frasca, Alessandro (CERN ; U. Liverpool (main)) ; Ilg, Armin (U. Zurich (main)) ; Nigrelli, Giulia (Frascati ; CERN ; Rome U.)
We present the status and prospects of beam-induced background studies for the Future Circular Collider in its electron–positron configuration (FCC-ee).The simulation workflow established within the Machine-Detector Interface (MDI) group is described, together with progress on the modelling of the interaction region, beam-pipe geometry, collimation system, and detector impacts. The main background sources are reviewed—Incoherent Pair Creation (IPC), synchrotron radiation, injection losses, beam-gas interactions, Touschek scattering,and radiative Bhabha processes. [...]
2026 - 8 p.
- Published in : PoS EPS-HEP2025 (2026) 517
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.517
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2026-06-10
06:36 |
Overview of the Heavy Ion Physics Programme at CERN – Current and Future Ion Source Requirements and Challenges (invited)
/ Küchler, D (CERN) ; Fernández, R Alemany (CERN) ; Bellodi, G (CERN) ; Bhaskar, B S (CERN) ; Mahner, E (CERN) ; Scrivens, R (CERN) ; Slupecki, M (CERN)
CERN has a long history of providing different types of ion beams for high-energy physics, both with fixed targets and in the LHC. Over the years, the user community was growing, and the range of requested beam types and species continued to expand. [...]
2026 - 10 p.
- Published in : J. Phys. : Conf. Ser. 3237 (2026) 012042
Fulltext: PDF;
In : 21st International Conference on Ion Sources (ICIS 2025), Oxford, United Kingdom, 8 - 12 Sep 2025, pp.012042
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2026-06-10
06:36 |
Operation of CERN’s major tests facility with upgraded cryogenic infrastructure for superconducting magnets, power links, inner triplets String and radio-frequency cavities for HL-LHC
/ Mauny, R (CERN) ; Barbe, T (CERN) ; Dupont, T (CERN) ; Ferrand, F (CERN) ; Gahier, V (CERN) ; Gery, J (CERN) ; Guillotin, N (CERN) ; Perin, A (CERN) ; Onufrena, A (CERN) ; Pirotte, O (CERN)
The largest cryogenic multipurpose test facility at CERN (SM18), recently significantly upgraded, provides helium refrigeration capacity for testing at nominal conditions, superconducting magnets, power links, radiofrequency (RF) cavities and the IT String (Inner Triplet) for the High Luminosity-Large Hadron Collider (HL-LHC) upgrade project, towards increased luminosity at interaction points 1 (ATLAS) and 5 (CMS) in the LHC accelerator. The SM18 cryogenics infrastructure and test benches have been progressively upgraded along the last 8 years to meet the technical requirements of the HL-LHC project. [...]
2026 - 8 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 1344 (2026) 012140
Fulltext: PDF;
In : 26th Joint Cryogenic Engineering Conference and International Cryogenic Materials Conference, Peppermill Reno Resort, Reno, Nevada, United States, 18 - 22 May 2025, pp.012140
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2026-06-10
06:36 |
LHC cryogenic system adaptation and recovery after a major insulation vacuum breakage in a final focusing superconducting magnet in 2023
/ Bradu, B (CERN) ; Combe, M (CERN) ; Gahier, V (CERN) ; Herblin, L (CERN) ; Pirotte, O (CERN)
On 17th of July 2023, during the LHC (Large Hadron Collider) beam operation for physics Run 3, one of the low-beta superconducting quadrupole located on the left side of the LHC point 8 (ITL8) quenched following an electrical network disturbance. This quench unfortunately induced a crack in one of the magnet interconnection bellows, provoking a large leak between the cold mass cryogenic helium vessel maintained at 1.9 K and its insulation vacuum. [...]
2026 - 7 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 1344 (2026) 012081
Fulltext: PDF;
In : 26th Joint Cryogenic Engineering Conference and International Cryogenic Materials Conference, Peppermill Reno Resort, Reno, Nevada, United States, 18 - 22 May 2025, pp.012081
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2026-06-10
06:36 |
Developments towards autonomous optimisation and stabilisation of the GTS-LHC Ion source at CERN
/ Küchler, D (CERN) ; Foldesi, L (CERN) ; Kain, V (CERN) ; Menor de Oñate, A (CERN) ; Rodriguez Mateos, B (CERN) ; Schenk, M (CERN)
Building on initial experience with state-of-the-art model-based adaptive stabilisation algorithms, experimental studies were conducted at the CERN LINAC3 ion source. A hierarchical control architecture was first implemented to better account for the different dynamic response times observed following variations in control parameters. [...]
2026 - 6 p.
- Published in : J. Phys. : Conf. Ser. 3237 (2026) 012084
Fulltext: PDF;
In : 21st International Conference on Ion Sources (ICIS 2025), Oxford, United Kingdom, 8 - 12 Sep 2025, pp.012084
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2026-06-10
06:36 |
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