1.
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The LHCb Online system in 2020: trigger-free read-out with (almost exclusively) off-the-shelf hardware
/ Colombo, T (CERN) ; Amihalachioaei, A (CERN ; Gh. Asachi Tech. U., Iasi) ; Arnaud, K (Marseille, CPPM) ; Alessio, F (CERN) ; Brarda, L (CERN) ; Cachemiche, J P (Marseille, CPPM) ; Cámpora, D (CERN ; Seville U.) ; Cap, S (Annecy, LAPP) ; Cardoso, L (CERN) ; Cindolo, F (INFN, Bologna ; U. Bologna, DIFA) et al.
The LHCb experiment at CERN has decided to optimise its physics reach by removing the first level hardware trigger for 2020 and beyond. In addition to requiring fully redesigned front-end electronics this design creates interesting challenges for the data-acquisition and the rest of the online computing system. [...]
2018 - 7 p.
- Published in : J. Phys.: Conf. Ser. 1085 (2018) 032041
Fulltext: PDF;
In : 18th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Seattle, WA, USA, 21 - 25 Aug 2017, pp.032041
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2.
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Network simulation of a 40 MHz event building system for the LHCb experiment
/ Pisani, Flavio (Bologna U. ; INFN, Bologna ; CERN) ; Colombo, Tommaso (CERN) ; Neufeld, Niko (CERN) ; Marconi, Umberto (INFN, Bologna) ; Krawczyk, Rafal (CERN) ; Galli, Domenico (Bologna U. ; INFN, Bologna) ; Schwemmer, Rainer (CERN) ; Durante, Paolo (CERN)
The LHCb experiment will be upgraded in 2021, and a new triggerless readout system will be implemented. In the upgraded system, both Event Building (EB) and event selection will be performed in software for every collision produced in every bunch-crossing of the LHC. [...]
2020 - 8 p.
- Published in : EPJ Web Conf. 245 (2020) 01012
Fulltext from publisher: PDF;
In : 24th International Conference on Computing in High Energy and Nuclear Physics, Adelaide, Australia, 4 - 8 Nov 2019, pp.01012
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3.
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Measurements of Single Event Upset in ATLAS IBL
/ Balbi, G. (INFN, Bologna) ; Barbero, M. (Bonn U. ; Marseille, CPPM) ; Beccherle, R. (INFN, Genoa ; INFN, Pisa) ; Bindi, M. (Gottingen U., II. Phys. Inst.) ; Breugnon, P. (Marseille, CPPM) ; Butti, P. (CERN ; SLAC) ; Cinca, D. (Dortmund U.) ; Dickinson, J. (LBL, Berkeley) ; Ferrere, D. (Geneva U.) ; Fougeron, D. (Marseille, CPPM) et al.
Effects of Single Event Upsets (SEU) and Single Event Transients (SET) are studied in the FE-I4B chip of the innermost layer of the ATLAS pixel system. SEU/SET affect the FE-I4B Global Registers as well as the settings for the individual pixels, causing, among other things, occupancy losses, drops in the low voltage currents, noisy pixels, and silent pixels. [...]
arXiv:2004.14116.-
2020-06-17 - 30 p.
- Published in : JINST 15 (2020) P06023
Fulltext: PDF; Fulltext from publisher: PDF;
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4.
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Level Zero Trigger processor for the ultra rare kaon decay experiment—NA62
/ Chiozzi, S (INFN, Ferrara ; Ferrara U.) ; Gamberini, E (INFN, Ferrara ; Ferrara U.) ; Gianoli, A (INFN, Ferrara ; Ferrara U.) ; Mila, G (INFN, Turin ; Turin U.) ; Neri, I (INFN, Ferrara ; Ferrara U.) ; Petrucci, F (INFN, Ferrara ; Ferrara U.) ; Soldi, D (INFN, Turin ; Turin U. ; CERN)
n the NA62 experiment at CERN-SPS the communication between detectors and the Lowest Level (L0) trigger processor is performed via Ethernet packets, using the UDP protocol. The L0 Trigger Processor handles the signals from sub-detectors that take part to the trigger generation. [...]
2016 - 9 p.
- Published in : JINST 11 (2016) C02037
IOP Open Access article: PDF;
In : Topical Workshop on Electronics for Particle Physics, Lisbon, Portugal, 28 Sep - 2 Oct 2015, pp.C02037
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5.
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Study of the response of ATLAS electromagnetic liquid argon calorimeters to muons
/ Aharrouche, M (Annecy, LAPP) ; Colas, J (Annecy, LAPP) ; Di Ciaccio, L (Annecy, LAPP) ; El Kacimi, M (Annecy, LAPP) ; Gaumer, O (Annecy, LAPP) ; Gouanère, M (Annecy, LAPP) ; Goujdami, D (Annecy, LAPP) ; Lafaye, R (Annecy, LAPP) ; Laplace, S (Annecy, LAPP) ; Le Maner, C (Annecy, LAPP) et al.
The response of the ATLAS electromagnetic calorimeter to muons has been studied in this paper. Results on signal over noise ratio, assessment of the detector response uniformity, and position resolution are presented. [...]
2009
- Published in : Nucl. Instrum. Methods Phys. Res., A 606 (2009) 419-431
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6.
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Preparing Distributed Computing Operations for the HL-LHC Era With Operational Intelligence
/ Di Girolamo, Alessandro (CERN) ; Legger, Federica (INFN, Turin) ; Paparrigopoulos, Panos (CERN) ; Schovancová, Jaroslava (CERN) ; Beermann, Thomas (Wuppertal U.) ; Boehler, Michael (Freiburg U.) ; Bonacorsi, Daniele (Bologna U. ; INFN, Bologna) ; Clissa, Luca (Bologna U. ; INFN, Bologna) ; Decker de Sousa, Leticia (Bologna U. ; INFN, Bologna) ; Diotalevi, Tommaso (Bologna U. ; INFN, Bologna) et al.
As a joint effort from various communities involved in the Worldwide LHC Computing Grid, the Operational Intelligence project aims at increasing the level of automation in computing operations and reducing human interventions. The distributed computing systems currently deployed by the LHC experiments have proven to be mature and capable of meeting the experiment goals, by allowing timely delivery of scientific results. [...]
2022 - 10 p.
- Published in : Front. Big Data 4 (2022) 753409
Fulltext: PDF;
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7.
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Design of analog front-ends for the RD53 demonstrator chip
/ Gaioni, L (Bergamo U. ; INFN, Pavia) ; De Canio, F (Bergamo U. ; INFN, Pavia) ; Nodari, B (Bergamo U. ; INFN, Pavia) ; Manghisoni, M (Bergamo U. ; INFN, Pavia) ; Re, V (Bergamo U. ; INFN, Pavia) ; Traversi, G (Bergamo U. ; INFN, Pavia) ; Barbero, M B (Marseille, CPPM) ; Fougeron, D (Marseille, CPPM) ; Gensolen, F (Marseille, CPPM) ; Godiot, S (Marseille, CPPM) et al.
The RD53 collaboration is developing a large scale pixel front-end chip, which will be a tool to evaluate the performance of 65 nm CMOS technology in view of its application to the readout of the innermost detector layers of ATLAS and CMS at the HL-LHC. Experimental results of the characterization of small prototypes will be discussed in the frame of the design work that is currently leading to the development of the large scale demonstrator chip RD53A to be submitted in early 2017. [...]
SISSA, 2017 - 14 p.
- Published in : PoS Vertex 2016 (2017) 036
Fulltext: PDF; External link: PoS server
In : VERTEX 2016, La Biodola, Italy, 25 - 30 Sep 2016, pp.036
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8.
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Recent progress of RD53 Collaboration towards next generation Pixel Read-Out Chip for HL-LHC
/ Demaria, N (INFN, Turin) ; Barbero, M B (Marseille, CPPM) ; Fougeron, D (Marseille, CPPM) ; Gensolen, F (Marseille, CPPM) ; Godiot, S (Marseille, CPPM) ; Menouni, M (Marseille, CPPM) ; Pangaud, P (Marseille, CPPM) ; Rozanov, A (Marseille, CPPM) ; Wang, A (Marseille, CPPM) ; Bomben, M (Paris U., VI-VII) et al.
/RD53
This paper is a review of recent progress of RD53 Collaboration. Results obtained on the study of the radiation effects on 65 nm CMOS have matured enough to define first strategies to adopt in the design of analog and digital circuits. [...]
FERMILAB-CONF-16-622-PPD.-
2016
- Published in : JINST 11 (2016) C12058
IOP Open Access article: PDF;
In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2016), Sestri Levante, Italy, 5 - 9 Sep 2016, pp.C12058
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9.
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Measurement of the response of the ATLAS liquid argon barrel calorimeter to electrons at the 2004 combined test-beam
/ Aharrouche, M (Annecy, LAPP) ; Adam-Bourdarios, C (Orsay, LAL) ; Aleksa, M (CERN) ; Banfi, D (Milan U. ; INFN, Milan) ; Benchekroun, D (Unlisted) ; Benslama, K (Nevis Labs, Columbia U.) ; Boonekamp, M (DAPNIA, Saclay) ; Carli, T (CERN) ; Carminati, L (Milan U. ; INFN, Milan) ; Chen, H (Brookhaven) et al.
2010 - 33 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 614 (2010) 400-432
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10.
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Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station
/ Aguilar, M (Madrid, CIEMAT) ; Ali Cavasonza, L (JARA, Aachen) ; Alpat, B (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon) ; Attig, N (Julich, NIC ; Unlisted, DE) ; Aupetit, S (LPSC, Grenoble) ; Azzarello, P (Geneva U.) ; Bachlechner, A (JARA, Aachen) ; Barao, F (LIP, Lisbon) et al.
/AMS
Knowledge of the rigidity dependence of the boron to carbon flux ratio (B/C) is important in understanding the propagation of cosmic rays. The precise measurement of the B/C ratio from 1.9 GV to 2.6 TV, based on 2.3 million boron and 8.3 million carbon nuclei collected by AMS during the first 5 years of operation, is presented. [...]
2016 - 8 p.
- Published in : Phys. Rev. Lett. 117 (2016) 231102
Fulltext: PDF;
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