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2023-03-27
17:58
Inclusive and differential cross-sections for dilepton $t\bar{t}$ production measured in $\sqrt{s}=13\;$TeV $pp$ collisions with the ATLAS detector
Differential and double-differential distributions of kinematic variables of leptons from decays of top-quark pairs ($t\bar{t}$) are measured using the full LHC Run 2 data sample collected with the ATLAS detector. [...]
CERN-EP-2023-016. - 2023.
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2023-03-27
15:41
Counting rate in the planned experiment to detect neutrino induced reactions / von Dardel, Guy F
CERN-NP-Internal-Report-61-5-Addendum. - 1961. - 1 p.
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2023-03-27
15:01
Experience in SYCL/oneAPI for event recostruction at the CMS experiment / Perego, Aurora (INFN, Milan Bicocca) /CMS Collaboration
The CMS software framework (CMSSW) has been recently extended to integrate heterogeneous computing with the aim of performing part of the physics reconstruction with GPUs to face the computational challenge that will come with the increase of luminosity during the High-Luminosity phase of the Large Hadron Collider (HL-LHC). To avoid writing a different implementation of the code for each backend, a performance portability library is used: Alpaka has been chosen as the compatibility layer for Run-3. [...]
CMS-CR-2023-042.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-03-27
15:01
Enabling continuous speedup of CMS Event Reconstruction through continuous benchmarking / Caputo, Claudio (Louvain U.) /CMS Collaboration
The outstanding performance obtained by the CMS experiment during Run 1 and Run 2 represents a great achievement of seamless hardware and software integration. Among the different software parts, the CMS offline reconstruction software is essential for translating the data acquired by the detectors into concrete objects that can be easily handled by the analyzers. [...]
CMS-CR-2023-038.- Geneva : CERN, 2023 - 5 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-03-27
15:00
Monitoring CMS experiment data and infrastructure for LHC Run3 and beyond / Uzunoglu, Ceyhun (CERN) /CMS Collaboration
The CMS experiment at CERN is a scientific endeavor that requires the coordinated efforts of thousands of researchers and engineers from around the world. To process and store the petabytes of data produced by CMS, the experiment relies on a distributed computing infrastructure. [...]
CMS-CR-2023-034.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-03-27
15:00
Automatic data processing for prompt calibration of the CMS ECAL / Pigazzini, Simone (Zurich, ETH) /CMS Collaboration
The CMS ECAL has achieved an impressive performance during the LHC Run-1 and Run-2. In both runs, the ultimate performance has been reached after a lengthy calibration procedure required to correct ageing-induced changes in the response of the channels. [...]
CMS-CR-2023-021.- Geneva : CERN, 2023 - 8 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-03-27
15:00
Implementing Machine Learning inference on FPGAs from software to hardware using hls4ml / Lorusso, Marco (INFN, Bologna ; Bologna U.) /CMS Collaboration
In the past few years, using Machine and Deep Learning techniques has become more and more viable, thanks to the availability of tools which allow people without specific knowledge in the realm of data science and complex networks to build AIs for a variety of research fields in the context of High Energy Physics, new algorithms based on ML are being tested for event selection in trigger operations, end-user physics analysis, and more. Time critical applications can benefit from implementing algorithms on low-latency hardware like specifically designed ASICs and programmable micro-electronics devices known as FPGAs. [...]
CMS-CR-2023-019.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-03-27
12:20
Observation of four-top-quark production in the multilepton final state with the ATLAS detector
This paper presents the observation of four-top-quark ($t\bar{t}t\bar{t}$) production in proton-proton collisions at the LHC. [...]
CERN-EP-2023-055. - 2023.
Fulltext - Previous draft version

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2023-03-25
06:30
A Novel Design for Improving the Control on the Stainless-Steel Vessel Welding Process for Superconducting Magnets / Vallone, G (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Anderssen, E (LBL, Berkeley) ; Fehrer, S (Fermilab) ; Ferracin, P (LBL, Berkeley) ; Ferradas Troitino, J (CERN)
Stainless steel vessels see widespread use in superconducting magnets for particle accelerator applications. [...]
FERMILAB-PUB-22-858-TD. - 2022. - 5 p.
Fermilab Library Server - Fulltext

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2023-03-25
06:30
Recent advances and perspectives of the high precision laser metrology / Batusov, V (Dubna, JINR) ; Budagov, J (Dubna, JINR) ; Glagolev, V (Dubna, JINR) ; Lyablin, M (Dubna, JINR) ; Shirkov, G (Dubna, JINR) ; Gayde, J Ch (CERN) ; Di Girolamo, B (CERN) ; Mainaud Durand, H (CERN) ; Mergelkuhl, D (CERN) ; Nessi, M (CERN) et al.
The laser-based metrology presents new means and opens possibilities in solving tasks where achievement of a high precision survey is of the principal signiˇcance necessity. The extended laser ˇducial line (coordinate axis) is necessary for precision alignment of basic structure units of large-scale accelerators, for precision assembly of subdetectors when mounting large spectrometric complexes, for online control of space stability of particle detectors during the data taking period. The high sensitivity laser inclinometers open the new possibilities for ground motion control and for accelerator (collider) beam space stabilization essential for achievement of stable high intensity (luminosity) at the interaction area. The investigation has been performed at the Dzhelepov Laboratory of Nuclear Problems, JINR..
E13-2014-21. - 2014. - 17 p.
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