2026-05-30
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2026-05-30
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Photodetector and scintillators development for the LHCb ECAL upgrade
/ Delenne, J (CERN ; Strasbourg, IPHC) ; Auffray, E (CERN) ; Barnyakov, M (INFN, Bologna) ; Bellavista, A (INFN, Bologna ; U. Bologna (main)) ; Boayrintsev, A (Inst. Scintill. Mat., Kharkiv) ; Carbone, A (INFN, Bologna ; U. Bologna (main)) ; Ferrari, F (INFN, Bologna ; U. Bologna (main)) ; Hurkalenko, Y (Inst. Scintill. Mat., Kharkiv) ; Manuzzi, D (INFN, Bologna) ; Martinazzoli, L (CERN) et al.
The LHCb electromagnetic calorimeter (ECAL) needs to be upgraded for Run 4 and 5, which will take place during the High-Luminosity phase of the Large Hadron Collider. The inner regions will be equipped with Spaghetti calorimeter (SpaCal) modules, using organic scintillating fibres in regions exposed to radiation doses of up to 200 kGy. [...]
2026 - 7 p.
- Published in : JINST 21 (2026) C04083
Fulltext: PDF;
In : PD25 7th International Workshop on New Photon-Detectors, Bologna, Italy, 3 - 5 Dec 2025, pp.C04083
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2026-05-30
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2026-05-30
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CaloPointFlow - Generating Calorimeter Showers as Point Clouds
/ Schnake, Simon (DESY ; RWTH Aachen U.) ; Kach, Benno (DESY) ; Scham, Moritz (DESY ; RWTH Aachen U.) ; Krücker, Dirk (RWTH Aachen U.) ; Borras, Kerstin (DESY ; RWTH Aachen U.) ; Vallecorsa, Sofia (CERN)
Precise simulations are essential for advancing particle physics research, but they require high computational resources due to the complexity of calorimeter interactions. To reduce this cost, we propose a novel generative model that interprets calorimeter showers as point clouds rather than 3D images. [...]
2026 - 7 p.
- Published in : J. Phys. : Conf. Ser. 3206 (2026) 012108
Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022, pp.012108
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2026-05-30
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Ultra-fast Small Angle Calorimeter for photon detection at KOTO II
/ Fedeli, P (INFN, Ferrara ; U. Ferrara (main)) ; Bandiera, L (INFN, Ferrara) ; Canale, N (INFN, Ferrara ; U. Ferrara (main)) ; Carsi, S (Insubria U., Como ; INFN, Milan Bicocca) ; Cavallina, M (INFN, Ferrara) ; De Salvator, D (INFN, Legnaro ; U. Padua (main)) ; Forlani, A (INFN, Ferrara ; U. Ferrara (main)) ; Francesconi, M (U. Naples (main)) ; Gatta, M (Frascati) ; Gianoli, A (INFN, Ferrara) et al.
KOTO-II at J-PARC is proposed to extend the search for the ultra-rare decay KL → π$^{0}$νν̄ by operating at substantially higher beam intensity than KOTO.In this regime, the Beam Hole Photon Veto (BHPV) must provide excellent timing performance and excellent γ/hadron discrimination to identify background photons and beam-induced activity. Given the time resolution of the lead-aerogel Cherenkov BHPV used in KOTO, a ∼19% nominal beam loss is expected under KOTO-II conditions.As an alternative, we propose a compact and highly granular Small Angle Calorimeter (SAC) based on ultra-fastlead-tungstate crystals read out with fast photomultiplier tubes, aiming to improve timing and reduce accidental veto losses.A SAC prototype consisting of two 3 × 3 PWO-UF crystal layers was tested at the CERN PS T9 beamline with Hamamatsu R9880 and R14755 metal-channel photomultipliers.In parallel, the crystals were characterized with high-resolution X-ray diffraction to quantifytheir orientation and enable measurements with aligned crystals.We present an overview of the detector R&D; and the first beam test results on energy response and time resolution..
2026 - 8 p.
- Published in : JINST
Fulltext: PDF;
In : PD25 7th International Workshop on New Photon-Detectors, Bologna, Italy, 3 - 5 Dec 2025, pp.C04071
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2026-05-30
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Deploying a cache content delivery network for the CMS experiment in Spain
/ Dengra, Carlos Pérez (PIC, Bellaterra) ; Molina, José Flix (PIC, Bellaterra) ; Sikora, Anna (U. Barcelona (main))
/CMS Collaboration
The High-Luminosity Large Hadron Collider (HL-LHC) is set to begin in 2029, with an expected tenfold increase in luminosity. This increase will generate a significant amount of simulation and collision data that must be processed, stored, and transferred across the Worldwide LHC Computing Grid (WLCG) sites. [...]
2026 - 7 p.
- Published in : J. Phys. : Conf. Ser. 3206 (2026) 012046
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In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022, pp.012046
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2026-05-30
06:54 |
Navigation, field integration and track parameter transport through detectors using GPUs and CPUs within the ACTS R&D; project
/ Salzburger, A (CERN) ; Niermann, J (CERN ; U. Gottingen (main)) ; Yeo, B (UC, Berkeley (main) ; LBNL, Berkeley) ; Krasznahorkay, A (CERN) ; Swatman, S N (CERN ; Amsterdam U.)
In order to tackle the amount of data that is expected to be produced in the high luminosity era of the Large Hadron Collider (LHC) and future experiments, the rate at which charged particle tracks can be reconstructed must increase significantly. Massively parallel GPGPU architectures are promising candidates to fulfil this requirement. [...]
2026 - 7 p.
- Published in : J. Phys. : Conf. Ser. 3206 (2026) 012076
Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022, pp.012076
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2026-05-30
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Upgrade of the CERN cryogenic test facility for the HL-LHC superconducting magnets and superconducting links
/ Pirotte, O (CERN) ; Barbe, T (CERN) ; Buzio, M (CERN) ; Dassa, L (CERN) ; Gahier, V (CERN) ; Guillotin, N (CERN) ; Lees, A (CERN) ; Mangiarotti, F (CERN) ; Mauny, R (CERN) ; Ninet, G (CERN) et al.
New superconducting magnets, based on Nb$_{3}$Sn technology, have been developed for the HL-LHC project, the High-Luminosity upgrade of the LHC (Large Hadron Collider) at Interaction Points 1 and 5. These magnets require thorough testing in cryogenic conditions at 4.5 and 1.9 K before their installation into the LHC. [...]
2026 - 9 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1344 (2026) , no. 1, pp. 012141
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In : 26th Joint Cryogenic Engineering Conference and International Cryogenic Materials Conference, Peppermill Reno Resort, Reno, Nevada, United States, 18 - 22 May 2025, pp.012141
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2026-05-30
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Supporting multiple hardware architectures at CMS: the integration and validation of POWER9
/ Boccali, Tommaso (INFN, Pisa) ; Haleem, Saqib (NCP, Islamabad) ; Hufnagel, Dirk (Fermilab) ; Rodrigues, Alan Malta (U. Notre Dame (main)) ; Martins, Jordan (Rio de Janeiro Federal U.) ; Mascheroni, Marco (UC, San Diego (main)) ; Ozturk, Hasan (CERN) ; Pérez-Calero Yzquierdo, Antonio (Madrid, CIEMAT ; PIC, Bellaterra) ; Skovpen, Kirill (U. Gent (main)) ; Spiga, Daniele (INFN, Perugia) et al.
Computing resources in the Worldwide LHC Computing Grid (WLCG) have been based entirely on the x86 architecture for more than two decades. In the near future, however, heterogeneous non-x86 resources, such as ARM, POWER and Risc-V, will become a substantial fraction of the resources that will be provided to the LHC experiments, due to their presence in existing and planned world-class HPC installations. [...]
FERMILAB-CONF-26-0362-CSAID.-
2026 - 6 p.
- Published in : J. Phys. : Conf. Ser. 3206 (2026) 012044
Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022, pp.012044
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2026-05-30
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