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Past and Present ATLAS Trigger / Bracinik, Juraj (University of Birmingham (GB)) ; ATLAS TDAQ Collaboration /ATLAS Collaboration
Past and Present ATLAS Trigger (Invited Talk)
ATL-DAQ-SLIDE-2024-644.- Geneva : CERN, 2024 Fulltext: bracinik_TD24_v7 - PDF; ATL-DAQ-SLIDE-2024-644 - PDF; External link: Original Communication (restricted to ATLAS)
In : Triggering Discoveries in High Energy Physics III, Vysoke Tatry, Sk, 9 - 13 Dec 2024
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2.
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Overview of current ATLAS L1 trigger and plans for Phase 1 upgrades / Bracinik, J (University of Birmingham)
In this talk I give an overview of existing ATLAS L1 trigger system and discuss briefly options for its Phase 1 upgrade
ATL-DAQ-SLIDE-2011-075.- Geneva : CERN, 2011 - 13 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Heavy quark fragmentation / Bracinik, J ; Cacciari, M ; Corradi, M ; Grindhammer, G
CERN, 2005 Published version from CERN: PDF;
In : HERA and the LHC : A Workshop on the Implications of HERA for LHC Physics, CERN, Geneva, Switzerland, 26 Mar 2004 - 24 Mar 2005, pp.390 (CERN-2005-014)
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4.
(9)
ATLAS Trigger Upgrades / Hillier, Stephen (University of Birmingham (GB)) /ATLAS Collaboration
Invited talk, no abstract..
ATL-DAQ-SLIDE-2024-636.- Geneva : CERN, 2024 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Triggering Discoveries in High Energy Physics III, Vysoke Tatry, Sk, 9 - 13 Dec 2024
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The performance of the ATLAS Level-1 Calorimeter Trigger with LHC collision data / Bracinik, J (Birmingham U.)
The ATLAS first-level calorimeter trigger is a hardware-based system designed to identify high-E$_T$ jets, electron/photon and $ au$ candidates and to measure total and missing E$_T$ in the ATLAS calorimeters. [...]
ATL-DAQ-PROC-2010-039. - 2011. - 6 p.
Original Communication (restricted to ATLAS) - Full text
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6.
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Performance of ATLAS L1 Calorimeter Trigger with data / Bracinik, J (University of Birmingham)
The ATLAS first-level calorimeter trigger is a hardware-based system designed to identify high-pT jets, electron/photon and tau candidates and to measure total and missing ET in the ATLAS calorimeters. After more than two years of commissioning in situ with calibration data and cosmic rays, the system has now been extensively used to select the most interesting proton-proton collision events. [...]
ATL-DAQ-SLIDE-2010-306.- Geneva : CERN, 2010 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Topical Workshop on Electronics for Particle Physics 2010, Aachen, Germany, 20 - 24 Sep 2010
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7.
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Track Reconstruction for the ATLAS Detector’s Phase II Trigger and Data Acquisition System using Graph Neural Networks / Ahuja, Sudha (University of London (GB)) /ATLAS Collaboration
Track Reconstruction for the ATLAS Detector’s Phase II Trigger and Data Acquisition System using Graph Neural Networks
ATL-DAQ-SLIDE-2024-184.- Geneva : CERN, 2024 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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8.
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ATLAS Level-1 Calorimeter Trigger:\nStatus and Development / Bracinik, J (Birmingham U.)
The ATLAS Level-1 Calorimeter Trigger seeds all the\ncalorimeter\nbased triggers in the ATLAS experiment at LHC.\nThe inputs to the system are analogue signals of\nreduced\ngranularity, formed by summing cells from both the ATLAS Liquid\nArgon and Tile calorimeters.\nSeveral stages of analogue then\ndigital processing, largely performed in FPGAs, refine these\nsignals via configurable and flexible algorithms into identified\nphysics objects, for example electron, tau or jet candidates.\nThe complete processing chain is performed in a pipelined\nsystem at the LHC bunch-crossing frequency, and with a fixed\nlatency of about 1$\mu$s.\n\nThe first LHC run from 2009-2013 provided a varied and\nchallenging environment for first level triggers.\nWhile\nthe energy and luminosity were below the LHC design, the pile-up\nconditions were similar to the nominal conditions.\nThe physics ambitions of the experiment also tested the performance\nof the Level-1 system while keeping within the rate limits\nset by detector readout.\nThis presentation will show how the\nLevel-1 Calorimeter rose to this challenge, including the\nrate and efficiency for important physics channels.\nIt will illustrate how the flexibility of FPGAs was utilised to\nenhance the performance and that there are still more\nideas to improve the trigger performance during the current\nshutdown using the spare capacity and flexibility built into\nthe processing modules along with small hardware additions.\nFinally, the longer term upgrade plans will also be reviewed..
ATL-DAQ-PROC-2013-009. - 2013. - 7 p.
Original Communication (restricted to ATLAS) - Full text - Published version
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ATLAS Trigger Rates and Physics Menu / Demers, Sarah (Yale University) /ATLAS Collaboration
A presentation of HL-LHC rates and target trigger menu for the 2016 ECFA Meeting in Aix-Les-Bains
ATL-DAQ-SLIDE-2016-863.- Geneva : CERN, 2016 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 3rd ECFA High Luminosity LHC Experiments Workshop, Aix-Les-Bains, France, 3 - 6 Oct 2016
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10.
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Analysis of the initial performance of the ATLAS Level-1 Calorimeter Trigger / Achenbach, R ; Adragna, P ; Aharrouche, M ; Andrei, V ; Åsman, B ; Barnett, B M ; Bauss, B ; Bendel, M ; Bohm, C ; Booth, J R A et al.
The ATLAS first-level calorimeter trigger is a hardware-based system designed to identify high-pT jets, electron/photon and tau candidates and to measure total and missing ET in the calorimeters. The installation of the full system of custom modules, crates and cables was completed in late 2007, but, even before the completion, it was being used as a trigger during ATLAS commissioning and integration. [...]
ATL-DAQ-PROC-2008-005; ATL-COM-DAQ-2008-010.- Geneva : CERN, 2008 - 5 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Naxos, Greece, 15 - 19 Sep 2008, pp.138-142 (CERN-2008-008)
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