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The Phase-2 ATLAS upgrade for the High Luminosity Large Hadron Collider (HL-LHC) has motivated progressive redesigns of the ATLAS Tile Calorimeter (TileCal) read-out link and control board (Daughterboard). The Daughterboard (DB)…

Instrumentation and Detectors · Physics 2020-10-28 Eduardo Valdes Santurio , Samuel Silverstein , Christian Bohm , Katherine Dunne , Suhyun Lee , Holger Motzkau

The ATLAS detector is one of the two multi-purpose experiments located at the Large Hadron Collider (LHC) at CERN and is expected to collect first collision data in summer 2009. Due to the large top-quark production cross-section the LHC…

High Energy Physics - Experiment · Physics 2009-01-13 J. Schieck

The CMS-TOTEM Precision Proton Spectrometer (CT-PPS) is an approved project to add tracking and timing information at approximately $\pm$210~m from the interaction point around the CMS detector. It is designed to operate at high luminosity…

Instrumentation and Detectors · Physics 2017-04-05 Michele Gallinaro

The ALICE Central Trigger Processor (CTP) is going to be upgraded for LHC Run 3 with completely new hardware and a new Trigger and Timing Control (TTC-PON) system based on a Passive Optical Network (PON) system. The new trigger system has…

Instrumentation and Detectors · Physics 2017-11-06 M. Krivda , D. Evans , K. L. Graham , A. Jusko , R. Lietava , O. Villalobos Baillie , N. Zardoshti , M. Bombara , M. Sefcik , I Kralik , L. A. Perez Moreno

Production LLM systems often rely on separate models for safety and other classification-heavy steps, increasing latency, VRAM footprint, and operational complexity. We instead reuse computation already paid for by the serving LLM: we train…

Computation and Language · Computer Science 2026-04-28 Gonzalo Ariel Meyoyan , Luciano Del Corro

In order to increase its discovery potential, the Large Hadron Collider (LHC) accelerator will be upgraded in the next decade. The high luminosity LHC (HL-LHC) period demands new sensor technologies to cope with increasing radiation…

Instrumentation and Detectors · Physics 2017-02-01 D. Vázquez Furelos , M. Carulla , E. Cavallaro , F. Förster , S. Grinstein , J. Lange , I. López Paz , M. Manna , G. Pellegrini , D. Quirion , S. Terzo

The Large Hadron Collider (LHC) at CERN plans to have a series of upgrades to increase its instantaneous luminosity to 7.5 the nominal luminosity. The increased luminosity drastically impacts the ATLAS trigger and readout data rates. The…

Instrumentation and Detectors · Physics 2022-05-25 T. Alexopoulos , T. Geralis , P. Gkountoumis , L. Levinson , I. Mesolongitis , O. Zormpa

ALICE (A Large Ion Collider Experiment) experiment at CERN LHC is designed to study the properties of the Quark-Gluon Plasma (QGP) in heavy-ion collisions. In 2019-2020 the upgrade of CERN LHC will increase the luminosity and the collision…

Instrumentation and Detectors · Physics 2019-05-01 A. I. Maevskaya

The ATLAS detector at CERN has completed its first full year of recording collisions at 7 TeV, resulting in billions of events and petabytes of data. At these scales, physicists must have the capability to read only the data of interest to…

Data Analysis, Statistics and Probability · Physics 2015-03-13 Peter van Gemmeren , David Malon

The ATLAS experiment measures the properties of particles that are products of proton-proton collisions at the LHC. The ATLAS detector will undergo a major upgrade before the high luminosity phase of the LHC. The ATLAS liquid argon…

Instrumentation and Detectors · Physics 2023-05-18 Georges Aad , Thomas Calvet , Nemer Chiedde , Robert Faure , Etienne Marie Fortin , Lauri Laatu , Emmanuel Monnier , Nairit Sur

The High Level Trigger (HLT) of the future ALICE heavy-ion experiment has to reduce its input data rate of up to 25 GB/s to at most 1.25 GB/s for output before the data is written to permanent storage. To cope with these data rates a large…

Distributed, Parallel, and Cluster Computing · Computer Science 2009-09-29 Timm M. Steinbeck

The upgraded Large Hadron Collider beauty (LHCb) experiment is the first detector based at a hadron collider using a fully software based trigger. The first `High Level Trigger' stage (HLT1) reduces the event rate from 30 MHz to…

High Energy Physics - Experiment · Physics 2025-07-25 T. Evans , C. Fitzpatrick , J. Horswill

LHCb is a forward spectrometer experiment dedicated to the study of new physics in the decays of beauty and charm hadrons produced in proton collisions at the Large Hadron Collider (LHC) at CERN. The VErtex LOcator (VELO) is the microstrip…

Instrumentation and Detectors · Physics 2013-02-26 Rodriguez Perez P. , LHCb VELO Group

The planned upgrade of the LHC accelerator at CERN, namely the high luminosity (HL) phase of the LHC (HL-LHC foreseen for 2023), will result in a more intense radiation environment than the present tracking system was designed for. The…

Instrumentation and Detectors · Physics 2015-12-09 Timo Peltola

The apparatus of the ALICE experiment at CERN will be upgraded in 2017/18 during the second long shutdown of the LHC (LS2). A major motivation for this upgrade is to extend the physics reach for charmed and beauty particles down to low…

The CMS muon system includes in both the barrel and endcap region Resistive Plate Chambers (RPC). They mainly serve as trigger detectors and also improve the reconstruction of muon parameters. Over the years, the instantaneous luminosity of…

The ATLAS pixel detector is the innermost detector of the ATLAS experiment at the Large Hadron Collider at CERN. With approximately 80 million readout channels, the ATLAS silicon pixel detector is a high-acceptance, high-resolution,…

Instrumentation and Detectors · Physics 2019-08-13 E. Galyaev

The ATLAS experiment has successfully recorded over 300 nb^-1 of pp collisions at 7 TeV provided by the Large Hadron Collider, with an efficiency of 94%. We describe the data acquisition, trigger, reconstruction, calibration, monitoring,…

Instrumentation and Detectors · Physics 2019-08-13 Peter Onyisi