2026-01-31
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2026-01-31
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RF power margin for operation with fixed-target in the CERN SPS
/ Papotti, Giulia (CERN) ; Cipolla, Gino (CERN) ; Li, Kevin (CERN)
The CERN Super Proton Synchrotron (SPS) Radio Frequency (RF) system was upgraded as part of the Large Hadron Collider Injector Upgrade (LIU) project, and now comprises six 200 MHz travelling wave structures, each fed by a separate RF power amplifier. While the upgrade was targeting the peak power for capture and acceleration of the beams for the High Luminosity LHC, it also brought an increase in the available average power for fixed-target beams. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) TUPS027
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.TUPS027
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2026-01-31
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2026-01-31
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Highlights from the LHC
/ Timko, Helga (CERN) ; Bradu, Benjamin (CERN) ; Bruce, Roderik (CERN) ; Brüning, Oliver (CERN) ; Buffat, Xavier (CERN) ; Cerutti, Francesco (CERN) ; Fartoukh, Stéphane (CERN) ; Gahier, Vanessa (CERN) ; Hostettler, Michi (CERN) ; Kostoglou, Sofia (CERN) et al.
In this contribution, highlights of the LHC proton and ion runs are presented, from mid-2023 to mid-2025. Starting from the LHC injector chain, the main achievements and milestones, contributing to the production of HL-LHC proton and ion beams, are covered. [...]
2025 - 13 p.
- Published in : PoS EPS-HEP2025 (2026) 007
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.007
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2026-01-31
10:49 |
First NA62 search for long-lived new physics particle hadronic decays
/ Rosa, Ilaria (SSM, Naples ; INFN, Naples)
/NA62 Collaboration
The NA62 experiment at CERN, designed to measure the highly-suppressed decay $K^+\to\pi^+\nu\bar\nu$, has the capability to collect data in a beam-dump mode, where 400 GeV protons are dumped on an absorber. In this configuration, new physics (NP) particles, including dark photons, dark scalars and axion-like particles, may be produced and reach a decay volume starting 80 m downstream of the absorber. [...]
2025 - 6 p.
- Published in : PoS EPS-HEP2025 (2026) 394
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.394
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2026-01-31
10:49 |
Accelerator Research
/ Auchmann, B (PSI, Villigen) ; Bisoffi, G (INFN, Legnaro) ; D'Hondt, J (NIKHEF, Amsterdam) ; Leemans, W (DESY) ; McIntosh, P (Rutherford Appleton Laboratory) ; Pattathil, R (Rutherford Appleton Laboratory) ; Schulte, D (CERN) ; Seidel, Mike (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Stapnes, S (CERN) ; Stocchi, A (IJCLab, Orsay) et al.
Following a recommendation of the 2020 update of the European Strategy for Particle Physics Update (ESPPU) to intensify the accelerator R&D;, the European Accelerator R&D; Roadmap with five topical research panels was implemented in 2022. Two of the panels, high field magnets, and high gradient RF structures and systems are technology oriented and their R&D; efforts will support several collider concepts. [...]
2025 - 12 p.
- Published in : PoS EPS-HEP2025 (2026) 032
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.032
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2026-01-31
10:49 |
Quantum Generative Modeling for Calorimeter Simulations on Noisy Quantum Devices
/ Monaco, Saverio (DESY ; RWTH Aachen U.) ; Slim, Jamal (DESY) ; Rehm, Florian (CERN) ; Scham, Moritz (Unlisted) ; Krücker, Dirk (DESY) ; Borras, Kerstin (DESY ; RWTH Aachen U.)
Quantum-based generative models offer a promising approach for simulating complex phenomena in high-energy physics, such as calorimeter showers used for particle identification and energy reconstruction at the LHC. We propose the Quantum Angle Generator (QAG), a variational quantum model trained with a Maximum Mean Discrepancy loss to generate images from the probabilistic outputs of quantum circuits. [...]
2025 - 6 p.
- Published in : PoS EPS-HEP2025 (2026) 639
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.639
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2026-01-30
08:01 |
Demonstrating beam splitting through stable islands formed by the third-order resonance at the CERN Super Proton Synchrotron
/ Veres, Dora (CERN ; Goethe U., Frankfurt (main)) ; Bartosik, Hannes (CERN) ; Giovannozzi, Massimo (CERN) ; Paraschou, Konstantinos (CERN) ; Franchetti, Giuliano (Darmstadt, GSI)
In recent years, several new beam manipulation techniques have been proposed that exploit the crossing of nonlinear resonances and the use of stable islands of the transverse phase space. One such manipulation is a novel approach to slow extraction, which combines particle trapping in stable islands with the use of bent crystals to reduce losses on the extraction septum. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPM048
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPM048
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2026-01-30
08:01 |
Upgrade II of the muon detector at LHCb
/ Debernardis, Francesco (INFN, Bari)
/LHCb Collaboration
The LHCb experiment at CERN, operating at the LHC collider, enabled significant advances in flavor physics and electroweak studies in the forward region, demonstrating excellent performance during LHC Run 1 and Run 2. Upgrades in detectors resolution and trigger system technology were necessary to cope with the increased luminosity in Run 3, reaching a peak value of $\mathcal{L}=2\times10^{33}$ cm\(^{-2}\)s\(^{-1}\). [...]
2026 - 7 p.
- Published in : PoS EPS-HEP2025 (2026) 473
Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025, pp.473
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2026-01-30
08:01 |
Quadrupole pumping for bunch shortening in the Proton Synchrotron and Super Proton Synchrotron at CERN
/ Flowerdew, Jake (CERN) ; Lasheen, Alexandre (CERN) ; Damerau, Heiko (CERN) ; Karpov, Ivan (CERN) ; Heine, Ruben (CERN)
Quadrupole pumping is a longitudinal manipulation technique for bunch shortening, which works by modulating the RF voltage at twice the synchrotron frequency to excite bunch length oscillations. These controlled oscillations rotate the bunch in longitudinal phase space, with extraction set for when the bunch is shortest. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) WEPS028
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.WEPS028
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