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As the particle physics community needs higher and higher precisions in order to test our current model of the subatomic world, larger and larger datasets are necessary. With upgrades scheduled for the detectors of colliding-beam…

Data Analysis, Statistics and Probability · Physics 2025-09-09 Fotis I. Giasemis

Physics collisions at 13 TeV are expected at the LHC with an average of 40-50 proton-proton collisions per bunch crossing under nominal conditions. Tracking at trigger level is an essential tool to control the rate in high-pileup conditions…

Instrumentation and Detectors · Physics 2019-08-13 Johanna Gramling

The determination of charged particle trajectories (tracking) in collisions at the CERN Large Hadron Collider (LHC) is one of the most important aspects for event reconstruction at hadron colliders. This is especially true in the high…

Instrumentation and Detectors · Physics 2022-12-06 H. Abidi , A. Boveia , V. Cavaliere , D. Furletov , A. Gekow , C. W. Kalderon , S. Yoo

The Large Hadron Collider (LHC) at CERN will provide proton-proton collisions at a centre-of-mass energy of 14 TeV with a design luminosity of 10**34/cm**2/s. The exploitation of the rich physics potential offered by the LHC will be…

High Energy Physics - Experiment · Physics 2007-05-23 Felicitas Pauss , Michael Dittmar

The planned high-luminosity upgrade of the Large Hadron Collider (LHC) at CERN will bring much higher data rates that are far above the capabilities of currently installed software-based data processing systems. Therefore, new methods must…

Hardware Architecture · Computer Science 2024-10-29 Sergei Devadze , Christine Elizabeth Nielsen , Dmitri Mihhailov , Peeter Ellervee

The LHCb experiment is starting to take data in Run 3 with a new DAQ system, capable of performing complete event reconstruction at the full LHC collision rate. One novel opportunity offered by this system is triggering on long-lived…

High Energy Physics - Experiment · Physics 2024-05-28 Lorenzo Pica

The High Energy Physics (HEP) experiments, such as those at the Large Hadron Collider (LHC), traditionally consume large amounts of CPU cycles for detector simulations and data analysis, but rarely use compute accelerators such as GPUs. As…

High Energy Physics - Experiment · Physics 2022-03-17 Zhihua Dong , Heather Gray , Charles Leggett , Meifeng Lin , Vincent R. Pascuzzi , Kwangmin Yu

Real-time data processing is one of the central processes of particle physics experiments which require large computing resources. The LHCb (Large Hadron Collider beauty) experiment will be upgraded to cope with a particle bunch collision…

Accelerator technology has advanced tremendously since the introduction of accelerators in the 1930s, and particle accelerators have become indispensable instruments in high energy physics (HEP) research to probe Nature at smaller and…

Accelerator Physics · Physics 2016-03-25 Pushpalatha Bhat , Vladimir Shiltsev

Collider experiments are equipped with trigger systems that rapidly inspect the physics content emerging from collisions to decide whether the resulting products are worth saving for later analysis. One crucial aspect for analyzing the…

High Energy Physics - Experiment · Physics 2026-04-14 Andrea Coccaro , Carlo Schiavi , Alessandro Zaio

High Energy Physics (HEP) needs a huge amount of computing resources. In addition data acquisition, transfer, and analysis require a well developed infrastructure too. In order to prove new physics disciplines it is required to higher the…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-08-14 Gábor Bíró , Gergely Gábor Barnaföldi , Endre Futó

The planned upgrade of the CMS detector for the High Luminosity LHC allows to find tracks in the silicon tracker for every single LHC collision and use them in the first level (hardware) trigger decision. So far, studies by CMS…

High Energy Physics - Phenomenology · Physics 2017-08-30 Yuri Gershtein

The hadron-hadron based Future Circular Collider (FCC-hh) is a project with the goal to collide proton-proton beams at a center of mass energy of sqrt(s)=100 TeV with a bunch crossing rate of 25 ns. Some of the major challenges that the…

Instrumentation and Detectors · Physics 2019-10-16 Tamasi Kar , Danilo E. F. de Lima , Andrè Schöning , Jike Wang

Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for signal selection in a wide variety of ATLAS physics analyses to study Standard Model processes and to search for new phenomena. Final…

High Energy Physics - Experiment · Physics 2015-11-16 Gabriella Pásztor

Finding tracks downstream of the magnet at the earliest LHCb trigger level is not part of the baseline plan of the upgrade trigger, on account of the significant CPU time required to execute the search. Many long-lived particles, such as…

Instrumentation and Detectors · Physics 2020-08-26 Riccardo Cenci , Andrea Di Luca , Federico Lazzari , Michael J. Morello , Giovanni Punzi

Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron ($eh$) scattering experiment at the LHC in the thirties for which key physics topics and their…

At the Large Hadron Collider, the vast amount of data from experiments demands not only sophisticated algorithms but also substantial computational power for efficient processing. This paper introduces hardware acceleration as an essential…

High Energy Physics - Experiment · Physics 2025-01-15 Pelayo Leguina López , Santiago Folgueras

The High-Luminosity LHC (HL-LHC) will reach luminosities up to 7 times higher than the previous run, yielding denser events and larger occupancies. Next generation trigger algorithms must retain reliable selection within a strict latency…

High Energy Physics - Experiment · Physics 2025-10-01 Martino Errico , Davide Fiacco , Stefano Giagu , Giuliano Gustavino , Valerio Ippolito , Graziella Russo

The trigger selection capabilities of the ATLAS detector have been significantly enhanced for the LHC Run- 2 in order to cope with the higher event rates and with the large number of simultaneous interactions (pile-up) per protonproton…

High Energy Physics - Experiment · Physics 2020-09-18 Pierre-Hugues Beauchemin

The ATLAS experiment at CERN measures energy of proton-proton (p-p) collisions with a repetition frequency of 40 MHz at the Large Hadron Collider (LHC). The readout electronics of liquid-argon (LAr) calorimeters are being prepared for high…

Instrumentation and Detectors · Physics 2022-04-20 Nemer Chiedde