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Related papers: Enabling distributed analysis for ALICE Run 3

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The ALICE High-Level Trigger processes data online, to either select interesting (sub-) events, or to compress data efficiently by modeling techniques. Focusing on the main data source, the Time Projection Chamber, the architecure of the…

Instrumentation and Detectors · Physics 2009-11-10 V. Lindenstruth , C. Loizides , D. Roehrich , B. Skaali , T. Steinbeck , R. Stock , H. Tilsner , K. Ullaland , A. Vestbo , T. Vik

ALICE is the experiment at the CERN LHC devoted to study heavy-ion collisions. An upgrade program of the ALICE detector is ongoing toward the LHC Run 3 starting in 2022 together with the upgrade of the data acquisition system and the…

Instrumentation and Detectors · Physics 2020-12-30 K. Yamakawa , A. Augustinus , G. Batigne , P. Chochula , M. Oya , S. Panebianco , O. Pinazza , K. Shigaki , R. Tieulent , Y. Yamaguchi

The IRIS-HEP Analysis Grand Challenge (AGC) is designed to be a realistic environment for investigating how analysis methods scale to the demands of the HL-LHC. The analysis task is based on publicly available Open Data and allows for…

High Energy Physics - Experiment · Physics 2023-04-12 Oksana Shadura , Alexander Held

The CMS experiment at the LHC has started data taking in Run 3 at a $\mathrm{pp}$ collision energy of $13.6~\mathrm{TeV}$. In preparation for Run 3, detector systems, such as Pixel Tracker, HCAL and CSC, have been upgraded due to…

High Energy Physics - Experiment · Physics 2023-09-07 Srećko Morović

We report on the pseudo-rapidity dependence of the charged particle anisotropic flow in Pb-Pb collisions at 2.76 TeV. The measurement is done over a wide range of pseudo-rapidity, |\eta|<5 using the forward detectors of ALICE at the LHC.…

Nuclear Experiment · Physics 2019-08-13 Alexander Hansen

We overview recent jet measurements in pp and Pb-Pb collisions with the ALICE detector. ALICE reconstructs jets at midrapidity using the anti-$k_{\mathrm{T}}$ algorithm, including both charged particle jets from the ALICE tracking…

Nuclear Experiment · Physics 2020-11-30 James Mulligan

Load balancing, operator instance collocations and horizontal scaling are critical issues in Parallel Stream Processing Engines to achieve low data processing latency, optimized cluster utilization and minimized communication cost…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-02-12 Kasper Grud Skat Madsen , Yongluan Zhou , Jianneng Cao

The process to certify highly Automated Vehicles has not yet been defined by any country in the world. Currently, companies test Automated Vehicles on public roads, which is time-consuming and inefficient. We proposed the Accelerated…

Systems and Control · Computer Science 2017-02-01 Zhiyuan Huang , Ding Zhao , Henry Lam , David J. LeBlanc

This paper describes general characteristics of the deployment and commissioned of the Detector Control System (DCS) AD0 for the second phase of the Large Hadron Collider (LHC). The AD0 detector is installed in the ALICE experiment to…

Instrumentation and Detectors · Physics 2016-09-27 Juan-Carlos Cabanillas-Noris , M. I. Martinez , I. Leon Monzon

ALICE (A Large Ion Collider Experiment) is the LHC (Large Hadron Collider) experiment devoted to investigating the strongly interacting matter created in nucleus-nucleus collisions at the LHC energies. The ALICE ITS, Inner Tracking System,…

Instrumentation and Detectors · Physics 2017-10-02 ALICE Collaboration

An efficient and precise reconstruction of charged-particle tracks is crucial for the overall performance of the CMS experiment. During Run 2 of LHC, significant upgrades were made to the track reconstruction algorithms in order to…

Instrumentation and Detectors · Physics 2020-12-15 Walaa Elmetenawee

The strategies for and the performance of the CMS tracker alignment during the ongoing Run 3 data-taking period are described. The results of the very first tracker alignment for Run 3 data reprocessing performed with cosmic rays and…

High Energy Physics - Experiment · Physics 2024-01-03 Sandra Consuegra Rodríguez

Long-range correlations between particles separated by a pseudorapidity gap are a powerful tool to explore the initial stages and evolution of the medium created in hadron-hadron collisions. An overview of the long-range correlations…

Nuclear Experiment · Physics 2017-04-05 Igor Altsybeev

This proceeding provides an expanded overview of the Fast Interaction Trigger (FIT) system performance, focusing on new developments such as the prospective integration of the ALICE Low-Level Front-End Device (ALFRED) into the Detector…

High Energy Physics - Experiment · Physics 2025-03-10 Krystian Roslon

The ALICE detector at the LHC recorded first Pb-Pb collisions at 2.76 TeV in November and December of 2010. We report on the measurements of anisotropic flow for charged and identified particles. From the comparison with measurements at…

Nuclear Experiment · Physics 2019-08-13 Raimond Snellings

The ALICE collaboration is preparing an upgrade of the three innermost layers of the current Inner Tracking System (ITS) during the next LHC long shutdown (LS3). The new ITS detector will use wafer-scale (up to \SI{27}{cm} in length)…

Instrumentation and Detectors · Physics 2026-01-29 Stefania Perciballi

Realistic environments for prototyping, studying and improving analysis workflows are a crucial element on the way towards user-friendly physics analysis at HL-LHC scale. The IRIS-HEP Analysis Grand Challenge (AGC) provides such an…

High Energy Physics - Experiment · Physics 2024-01-08 Alexander Held , Elliott Kauffman , Oksana Shadura , Andrew Wightman

RooFit and RooStats, the toolkits for statistical modelling in ROOT, are used in most searches and measurements at the Large Hadron Collider. The data to be collected in Run 3 will enable measurements with higher precision and models with…

Mathematical Software · Computer Science 2020-07-27 Stephan Hageboeck , Lorenzo Moneta

ALICE (A Large Ion Collider Experiment) aims at studying the behaviour of nuclear matter at high energy densities and the transition to the Quark Gluon Plasma (QGP), expected to occur in ultra-relativistic heavy ion collisions. Quarkonia…

High Energy Physics - Experiment · Physics 2019-08-14 M. Gagliardi

The ALICE ITS3 project foresees the use of ultra-light MAPS, developed in the 65 nm imaging process, for the vertex detector in the ALICE experiment at the LHC to drastically improve the vertexing performance. This new development,…

Instrumentation and Detectors · Physics 2024-09-13 Kunal Gautam , Ajit Kumar