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The ATLAS experiment at the Large Hadron Collider has a broad physics programme ranging from precision measurements to direct searches for new particles and new interactions, requiring ever larger and ever more accurate datasets of…

High Energy Physics - Experiment · Physics 2024-11-25 ATLAS Collaboration

We discuss a concept of a lower-energy version of the Large Hadron-electron Collider (LHeC), delivering electron-hadron collisions concurrently to the hadron-hadron collisions at the high-luminosity LHC at CERN. Assuming the use of a 20 GeV…

High Energy Physics - Experiment · Physics 2026-05-05 Kevin David J André , Laurent Forthomme , Bernhard Holzer , Krzysztof Piotrzkowski

Radiation damage significantly impacts the performance of silicon tracking detectors in Large Hadron Collider (LHC) experiments such as ATLAS and CMS, with signal reduction being the most critical effect. Adjusting sensor bias voltage and…

High Energy Physics - Experiment · Physics 2025-01-22 Marco Bomben , Keerthi Nakkalil

Jet substructure observables have been used by experiments at the Large Hadron Collider (LHC) as instruments to search for new physics as well as to study perturbative and nonperturbative processes in quantum chromodynamics (QCD). Some…

High Energy Physics - Experiment · Physics 2022-05-25 Ezra Lesser

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 excellent particle identification capabilities of the ALICE detector, using the time projection chamber and the time-of-flight detector, allow the detection of light nuclei and anti-nuclei. Furthermore, the high tracking resolution…

Nuclear Experiment · Physics 2016-11-23 Natasha Sharma

The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016-18 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded…

High Energy Physics - Experiment · Physics 2023-12-27 ATLAS Collaboration

With increasing energy and luminosity available at the Large Hadron collider (LHC), we get a chance to take a pure bottom-up approach solely based on data. This will extend the scope of our understanding about Nature without relying on…

High Energy Physics - Phenomenology · Physics 2021-11-16 Minho Kim , Pyungwon Ko , Jae-hyeon Park , Myeonghun Park

In LHC Run 3, the upgraded ALICE detector will record Pb-Pb collisions at a rate of 50 kHz usingcontinuous readout. The resulting stream of raw data at 3.5 TB/s has to be processed with a setof lossy and lossless compression and data…

Instrumentation and Detectors · Physics 2022-09-21 Michael Lettrich

We present results of an R&D study for a specialized processor capable of precisely reconstructing, in pixel detectors, hundreds of charged-particle tracks from high-energy collisions at 40 MHz rate. We apply a highly parallel…

For LHC Run 3, the ALICE Time Projection Chamber was upgraded to operate in continuous readout mode. Interaction rates of up to 50 kHz in Pb-Pb collisions require real-time processing of more than 3 TB/s of raw detector data. This…

Instrumentation and Detectors · Physics 2026-03-18 J. Alme , T. Alt , C. Andrei , V. Anguelov , H. Appelshäuser , M. Arslandok , R. Averbeck , M. Ball , G. G. Barnaföldi , P. Becht , R. Bellwied , A. Berdnikova , B. Blidaru , L. Boldizsár , L. Bratrud , P. Braun-Munzinger , M. Bregant , C. L. Britton , H. Büsching , H. Caines , P. Chatzidaki , P. Christiansen , T. M. Cormier , L. Döpper , R. Ehlers , L. Fabbietti , F. Flor , J. J. Gaardhøje , M. G. Munhoz , C. Garabatos , P. Gasik , Á. Gera , P. Glässel , N. Grünwald , T. Gündem , T. Gunji , H. Hamagaki , J. W. Harris , P. Hauer , E. Hellbär , H. Helstrup , A. Herghelegiu , H. D. Hernandez Herrera , Y. Hou , C. Hughes , M. Ivanov , J. Jäger , Y. Ji , J. Jung , M. Jung , B. Ketzer , S. Kirsch , M. Kleiner , A. G. Knospe , M. Korwieser , M. Kowalski , L. Lautner , M. Lesch , C. Lippmann , G. Mantzaridis , R. D. Majka , A. Marin , C. Markert , S. Masciocchi , A. Matyja , M. Meres , D. L. Mihaylov , D. Miśkowiec , R. H. Munzer , H. Murakami , K. Münning , A. Nassirpour , C. Nattrass , B. S. Nielsen , W. A. V. Noije , A. C. Oliveira Da Silva , A. Oskarsson , K. Oyama , L. Österman , Y. Pachmayer , G. Paić , M. Petris , M. Petrovici , M. Planinic , J. Rasson , K. F. Read , A. Rehman , R. Renfordt , A. Riedel , K. Røed , D. Röhrich , E. Rubio , A. Rusu , S. Sadhu , B. C. S. Sanches , J. Schambach , A. Schmah , C. Schmidt , A. Schmier , K. Schweda , D. Sekihata , D. Silvermyr , B. Sitar , N. Smirnov , H. K. Soltveit , C. Sonnabend , S. P. Sorensen , J. Stachel , L. Šerkšnytė , G. Tambave , K. Ullaland , B. Ulukutlu , D. Varga , O. Vazquez Rueda , B. Voss , J. Wiechula , B. Windelband , J. Wilkinson , J. Witte , A. Yadav , F. Zanone , S. Zhu

In this work we explore the possibility to perform ``effective energy'' studies in very high energy collisions at the CERN Large Hadron Collider (LHC). In particular, we focus on the possibility to measure in $pp$ collisions the average…

In LHC Run 3, ALICE will increase the data taking rate significantly to continuous readout of 50 kHz minimum bias Pb-Pb collisions. The reconstruction strategy of the online offline computing upgrade foresees a first synchronous online…

Instrumentation and Detectors · Physics 2018-11-29 David Rohr , Sergey Gorbunov , Marten Ole Schmidt , Ruben Shahoyan

The ALICE experiment at CERN will propose unprecedented requirements for event building and data recording. New technologies will be adopted as well as ad-hoc frameworks, from the acquisition of experimental data up to the transfer onto…

ALICE is a general purpose experiment dedicated to the study of nucleus-nucleus collisions at LHC. After more than 3 years of successful operation, an upgrade of the apparatus during the second long shutdown of LHC (LS2) in 2017/18 is in…

Instrumentation and Detectors · Physics 2019-08-14 Serhiy Senyukov

The Large Hadron Collider (LHC) will start operation in the end of 2007 colliding proton and lead beams at \surd S = 14 TeV and \surd S_{NN} = 5.5 TeV, respectively. The accelerator and the experiments are under construction and detailed…

Instrumentation and Detectors · Physics 2007-07-25 Hans-Ake Gustafsson

We describe a fully GPU-based implementation of the first level trigger for the upgrade of the LHCb detector, due to start data taking in 2021. We demonstrate that our implementation, named Allen, can process the 40 Tbit/s data rate of the…

In 2022 and 2023, the Large Hadron Collider produced approximately two billion hadronic interactions each second from bunches of protons that collide at a rate of 40 MHz. The ATLAS trigger system is used to reduce this rate to a few kHz for…

High Energy Physics - Experiment · Physics 2025-03-20 ATLAS Collaboration

The ATLAS detector at CERN will provide a high-resolution longitudinally-segmented calorimeter and precision tracking for the upcoming study of heavy ion collisions at the LHC (sqrt(s_NN)=5520 GeV). The calorimeter covers |eta|<5 with both…

Nuclear Experiment · Physics 2019-08-13 P. Steinberg

The ALICE experiment, currently in the commissioning phase, will study nucleus-nucleus and proton-proton collisions at the CERN Large Hadron Collider (LHC). We review the ALICE heavy-flavour physics program.

Nuclear Experiment · Physics 2019-08-13 Andrea Dainese