CERN Accelerating science

CERN Published Articles

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2025-07-31
06:15
High fidelity numerical modelling and condition monitoring applied to septum magnets at CERN / Kawa, Krzysztof (CERN ; AGH-UST, Cracow) ; Szumlak, Tomasz (AGH-UST, Cracow) ; Kokkinos, Charilaos (Unlisted, GR) ; Lackner, Friedrich (CERN)
The CERN Accelerator Beam Transfer group has recently launched a study to investigate the life cycles of pulsed septum magnets. The development is aiming to enhance the prediction of anomalies, leading to reduced life cycles of these beam transfer equipment. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPR29 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPR29

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2025-07-31
06:15
Charm production: Constraint to transport models and charm diffusion coefficient with ALICE / Völkl, Martin (Heidelberg U.) /ALICE Collaboration
New measurements of D mesons with the ALICE detector, interpreted with theoretical models, can give additional information about the spatial diffusion coefficient, a characteristic of the QGP medium. The relevant ingredients to the models can be assessed by comparing the predictions with diverse measurements of charmed hadrons. [...]
2023 - 4 p. - Published in : EPJ Web Conf. 276 (2023) 02004 Fulltext: PDF;
In : The 20th International Conference on Strangeness in Quark Matter (SQM 2022), Busan, Korea, 13 - 17 Jun 2022, pp.02004

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2025-07-31
06:15
Feasibility study of the Alice fixed-target experiment with HL-LHC lead ion beams based on crystal-assisted beam Halo splitting / Patecki, Marcin (Warsaw U. of Tech. (main)) ; Monikowska, Marta (Warsaw U. of Tech. (main))
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the world's largest and most powerful particle accelerator, colliding beams of protons and lead ions at energies up to 7 ZTeV. ALICE is one of the detector experiments optimized for heavy-ion collisions.A fixed-target experiment in ALICE is considered to collide a portion of the beam halo, split using a bent crystal, with an internal target placed a few meters upstream of the detector. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) MOPC21 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.MOPC21

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2025-07-31
06:15
ESS WS scintillator system design and test results / Grishin, Viatcheslav (ESS, Lund) ; Aleksandrov, Alexander (ORNL, Oak Ridge (main)) ; Boehme, Christian (Julich, Forschungszentrum) ; Derrez, Clement (ESS, Lund) ; Thomas, Cyrille (ESS, Lund) ; Bergman, Edvard (ESS, Lund) ; Donegani, Elena (ESS, Lund) ; Kocevar, Hinko (ESS, Lund) ; Emery, Jonathan (CERN) ; Sirvent, Jose (CERN) et al.
The WS superconducting systems are based on scintillator detectors and wavelength shifting fibers are mounted on the beam pipe. The detectors are coupled to long haul optical fibers, which carry the signals to custom front end electronics sitting in controls racks at the surface. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) WEPG33 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG33

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2025-07-31
06:15
Test beam performance of a novel RICH detector with timing capabilities for the future ALICE 3 PID system at LHC / Mazziotta, M N (INFN, Bari) ; Congedo, L (INFN, Bari) ; De Robertis, G (INFN, Bari) ; Di Mauro, A (CERN) ; Licciulli, F (INFN, Bari) ; Lorusso, L (INFN, Bari ; Bari U. ; Bari Polytechnic) ; Martinengo, P (CERN) ; Nappi, E (INFN, Bari) ; Nicassio, N (INFN, Bari ; Bari U. ; Bari Polytechnic) ; Panzarini, G (INFN, Bari ; Bari U. ; Bari Polytechnic) et al.
The ALICE Collaboration is proposing a completely new apparatus, ALICE 3, for the LHC Run 5 and beyond. A key subsystem for charged particle identification will be a Ring-Imaging Cherenkov (RICH) detector consisting of an aerogel radiator and a photosensitive surface based on Silicon Photomultiplier (SiPM) arrays in a proximity-focusing configuration. [...]
2025 - 8 p. - Published in : JINST
Fulltext: PDF;

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2025-07-31
06:15
Effects of dipole power converter ripple during empty-bucket channelling / Arrutia Sota, Pablo Andreas (U. Oxford (main)) ; Velotti, Francesco (CERN) ; Fraser, Matthew (CERN)
In 2023, an RF technique known as empty-bucket channelling was implemented operationally at the CERN Super Proton Synchrotron (SPS) to improve the quality of the spill provided to the North Area experiments. Empty-bucket channelling suppresses particle-flux variations during resonant slow extraction by accelerating particles between empty RF buckets and rapidly displacing particles into the tune resonance via chromatic coupling. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPC70 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC70

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2025-07-31
06:15
Energy dependence of PS main unit harmonics / Ferrentino, Vittorio (U. Naples (main)) ; Huschauer, Alexander (CERN) ; Gilardi, Antonio (U. Naples (main)) ; Cotte, Denis (CERN) ; Maclean, Ewen (CERN) ; von Freeden, Luke (CERN) ; Karppinen, Mikko (CERN) ; Arpaia, Pasquale (CERN) ; Tomas, Rogelio (CERN) ; Persson, Tobias (CERN)
CERN Proton Synchrotron (PS) is featured with 100 C-shaped combined-function Main Units (MUs) magnets with a complicated pole shape. The operation and the modelling of the PS-MUs has been historically carried out with empirical beam-based studies. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPC15 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC15

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2025-07-31
06:15
Timing resolution of a TOF-DOI detector module prototype for positron emission tomography / Nadig, Vanessa (Unlisted, DE) ; Terragni, Giulia (CERN ; TU Vienna) ; Toumparidou, Ekaterini (Unlisted, DE) ; Hornisch, Matthias (Unlisted, DE) ; Selenski, Artur (Unlisted, DE) ; Herweg, Katrin (Unlisted, DE ; RWTH Aachen U.) ; Tribbia, Elena (CERN ; Milan Bicocca U. (main)) ; Auffray, Etiennette (CERN) ; Schulz, Volkmar (RWTH Aachen U. ; Unlisted, DE) ; Gundacker, Stefan (Unlisted, DE ; Vienna, OAW)
To increase the image quality and spatial resolution inpositron emission tomography (PET), organ-dedicated and large axialfield of view scanners require precise correction of the parallaxerrors at oblique angles via depth-of-interaction methods. Inaddition to their large solid angle coverage, time-of-flight (TOF)information, i.e., a high coincidence time resolution (CTR), can beexploited to increase the image signal-to-noise ratio andeffectively boost system sensitivity. [...]
2025 - 17 p. - Published in : JINST 20 (2025) P07034 Fulltext: PDF;

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2025-07-31
06:15
A novel non-destructive assay methodology for the disposal of the LHC beam dumping system at CERN / Menaa, Nabil (CERN) ; Dyrcz, Patrycja (CERN) ; Bernardes, Ana-Paula (CERN) ; Calviani, Marco (CERN) ; Dumont, Gerald (CERN) ; Infantino, Angelo (CERN) ; Magistris, Matteo (CERN) ; Theis, Chris (CERN)
During the Long Shut-down (LS2), the beam stopper of the Large Hadron Collider (LHC) was replaced. It was decided to eliminate the extracted two LHC beam dumps, also known as Target Dump for Ejected Beam External (TDE), as radioactive waste. [...]
2025 - 10 p. - Published in : Appl. Radiat. Isot. 225 (2025) 112004

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2025-07-31
06:15
Selecting and Modeling Background Events in the Dimuon Channel in the CMS Experiment / Zhizhin, I (Dubna, JINR) ; Lanev, A (Dubna, JINR) ; Shmatov, S (Dubna, JINR)
The Compact Muon Solenoid (CMS) experiment has an extensive physics program in the proton–proton collision mode, which provides for both verification of the Standard Model using a new energy scale starting from 1 TeV, and searching for new physics objects and phenomena beyond it. Inside the dilepton channel where the search for new physics is currently underway, the established limits on invariant masses of dileptons can reach several TeV. [...]
2025 - 6 p. - Published in : Phys. Part. Nucl. 56 (2025) 937-942

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