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Development of a novel compact and fast SiPM-based RICH detector for the future ALICE 3 PID system at LHC / Mazziotta, M N (INFN, Bari) ; Altamura, A R (INFN, Bari) ; Congedo, L (INFN, Bari) ; De Robertis, G (INFN, Bari) ; Di Mauro, A (CERN) ; Guerra-Pulido, J O (Mexico U., ICN) ; Licciulli, F (INFN, Bari) ; Lorusso, L (INFN, Bari ; Bari Polytechnic) ; Martinengo, P (CERN) ; Nappi, E (INFN, Bari) et al.
A dedicated R&D; is ongoing for the charged particle identification system of the ALICE 3 experiment proposed for the LHC Run 5 and beyond.One of the subsystems for the high-energy charged particle identification will be a Ring-Imaging Cherenkov (RICH) detector.The possibility of integrating Cherenkov-based charged particle timing measurements is currently under study.The proposed system is based on a proximity-focusing RICH configuration including an aerogel radiator separated from a SiPM array layer by an expansion gap. A thin high-refractive index window of transparent material, acting as a second Cherenkov radiator, is glued on the SiPM array to enable time-of-flight measurements of charged particles by exploiting the yield of Cherenkov photons in the thin window.We assembled a small-scale prototype instrumented with different Hamamatsu SiPM array sensors with pitches ranging from 1 to 3 mm, readout by custom boards equipped with the front-end Petiroc 2A ASICs to measure charges and times.The primary Cherenkov radiator consisted of a 2 cm thick aerogel tile, while various window materials, including SiO$_{2}$ and MgF$_{2}$, were used as secondary Cherenkov radiators.The prototype was successfully tested in a campaign at the CERN PS T10 beam line with pions and protons. [...]
2025 - 8 p. - Published in : JINST
Fulltext: PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024, pp.C01001

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Estimation of backgrounds from jets misidentified as $\tau$-leptons using the Universal Fake Factor method with the ATLAS detector / ATLAS Collaboration
Processes with $\tau$-leptons in the final state are important for Standard Model measurements and searches for physics beyond the Standard Model. [...]
arXiv:2502.04156 ; CERN-EP-2025-003. - 2025 - 47.
Fulltext - Previous draft version - Fulltext

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Towards Machine-Learning Particle Flow with the ATLAS Detector at the LHC / Clissa, Luca (Universita e INFN, Bologna (IT))
Particle flow reconstruction at colliders combines various detector subsystems (typically the calorimeter and tracker) to provide a combined event interpretation that utilizes the strength of each detector. [...]
ATL-SOFT-PROC-2025-018. - 2025 - 8.
Original Communication (restricted to ATLAS) - Full text

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Introducing modern particle detectors in the classroom: a slice-by-slice overview / Duggan, Ruadh (CERN ; Utrecht U.) ; Chatzidaki, Panagiota (CERN ; Uppsala U.) ; Boselli, Margherita (CERN) ; Dahlkemper, Merten Nikolay (CERN ; Gottingen U.) ; Durey, Guillaume (CERN) ; Herff, Niklas (CERN) ; Horvat, Anja Kranjc (CERN) ; Scheerer, Gernot Werner (CERN) ; Schmeling, Sascha (CERN) ; Thill, Patrick Georges (CERN) et al.
This paper aims to provide a basis for teachers interested in bringing modern particle detectors into their classrooms. In particular, it gives an overview of the basic principles of modern particle detectors, linking them to concepts that are already a part of the curriculum. [...]
2024 - 11 p. - Published in : Phys. Educ. 59 (2024) 065027 Fulltext: PDF;

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An integrated flux-symmetric spectrometer-magnet system for the SND@LHC experiment upgrade / SND@LHC Collaboration
The proposed upgrade of the SND@LHC experiment for the High Luminosity phase of the LHC (HL-LHC) will strongly benefit from the presence of a magnetized region, allowing for muon momentum and chargemeasurement. In this paper we describe an iron core magnet system that is partly integrated with the calorimeter and that is designed to respect the strict constraints from the available space in the experimental cavern, power consumption, and field requirements.Semi-analytical tools are introduced to explore the parameter space, in order to define the primary design options. [...]
2024 - 26 p. - Published in : JINST 19 (2024) P12002 Fulltext: PDF;

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Precision calibration of calorimeter signals in the ATLAS experiment using an uncertainty-aware neural network / ATLAS Collaboration
The ATLAS experiment at the Large Hadron Collider explores the use of modern neural networks for a multi-dimensional calibration of its calorimeter signal defined by clusters of topologically connected cells (topo-clusters). [...]
arXiv:2412.04370 ; CERN-EP-2024-317. - 2024 - 72.
Fulltext - Previous draft version - Fulltext

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Towards Machine-Learning Particle Flow with the ATLAS Detector at the LHC / Clissa, Luca (Universita e INFN, Bologna (IT)) ; Swiatlowski, Maximilian J (TRIUMF (CA)) ; Vivarelli, Iacopo (Universita e INFN, Bologna (IT)) ; Bohm, Jessica (TRIUMF (CA)) ; Jovanovic, Marko ; Himmens, Joshua Jon (TRIUMF (CA)) /ATLAS Collaboration
Particle flow reconstruction at colliders combines various detector subsystems (typically the calorimeter and tracker) to provide a combined event interpretation that utilizes the strength of each detector. The accurate association of redundant measurements of the same particle between detectors is the key challenge in this technique. [...]
ATL-SOFT-SLIDE-2024-507.- Geneva : CERN, 2024 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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Enhancement of System Observability During System-Level Radiation Testing Through Total Current Consumption Monitoring / Slipukhin, Ivan (CERN) ; Coronetti, Andrea (CERN) ; Alía, Rubén García (CERN) ; Saigné, Frédéric (IES, Montpellier) ; Boch, Jérôme (IES, Montpellier) ; Dilillo, Luigi (IES, Montpellier) ; Aguiar, Ygor Q (CERN) ; Cazzaniga, Carlo ; Kastriotou, Maria ; Dodd, Torran
System-level testing of electronics is an affordable method of assessment of the performance of complete electronic systems designed for applications in the radiation environment. Compared to component-level testing, system-level test offers a much smaller degree of observability about the performance of particular system elements. [...]
2024 - 8 p. - Published in : IEEE Trans. Nucl. Sci.
Fulltext: PDF;
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2023), Toulouse, France, 25 - 29 Sep 2023, pp.1948-1955

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The TORCH time-of-flight detector for Upgrade II of the LHCb experiment / Blake, T (Warwick U.) ; Cicala, F (Warwick U.) ; Conneely, T (Unlisted, UK) ; Cussans, D (Bristol U.) ; Davidson, A (Warwick U.) ; Frei, C (CERN) ; Forty, R (CERN) ; Gao, R (Oxford U.) ; Gershon, T (Warwick U.) ; Gys, T (CERN) et al.
The TORCH (Time Of internally Reflected Cherenkov light) detector is proposed for the high-luminosity UpgradeII of the LHCb experiment. The aim of TORCH is to measure time-of-flight with a 15ps resolution per charged-particle, providing particle identification over the momentum range 2–15GeV/c. [...]
2024 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1069 (2024) 169797
In : 16th Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 26 May - 1 Jun 2024, pp.169797

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10.

Enhancing Prompt Lepton Identification: Development and Optimization of the PLIT Tagger / Maricic, Ema (Belgrade U.)
Within the ATLAS Experiment the Prompt Lepton Isolation Tagger (PLIT) has been developed to serve as an essential tool to distinguish between prompt muons originating from the decays of the Higgs, W and Z bosons and non-prompt muons generated in the semi-leptonic decays of b- and c-hadrons. [...]
ATL-MUON-PROC-2024-016. - 2024 - 3.
Original Communication (restricted to ATLAS) - Full text

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