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1.
The ATLAS Data Acquisition and High-Level Trigger : Concept, Design and Status / Gorini, B ; Abolins, M ; Alexandrov, I ; Amorim, A ; Aracena, I ; Armstrong, S ; Badescu, E ; Baines, J T M ; Barros, N ; Beck, H P et al.
The Trigger and Data Acquisition system (TDAQ) of the ATLAS experiment at the CERN Large Hadron Collider is based on a multi-level selection process and a hierarchical acquisition tree. [...]
ATL-DAQ-CONF-2006-016 ; ATL-COM-DAQ-2006-030. - 2006. - 6 p.
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2. Muon Reconstruction and Identification for the Event Filter of the ATLAS experiment / Ventura, A; Dos Anjos, A; Armstrong, S; Baines, J T M; Bee, C P; Bellomo, M; Biglietti, M; Bogaerts, J A C (CERN); Bosman, M; Carlino, G et al.
The ATLAS Trigger requires high efficiency and selectivity in order to keep the full physics potential of the experiment and to reject uninteresting processes from the 40 MHz event production rate of the LHC. These goals are achieved with a trigger composed of three sequential levels of increasing accuracy that have to reduce the output event rate down to ~ 100 Hz. [...]
ATL-COM-DAQ-2006-028.- Geneva : CERN, 2006 - 5 p.
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3.
Design, deployment and functional tests of the on-line Event Filter for the ATLAS experiment at LHC / Negri, A ; Armstrong, S ; Dos Anjos, A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
The Event Filter selection stage is a fundamental component of the ATLAS Trigger and Data Acquisition architecture. [...]
ATL-DAQ-CONF-2005-004 ; ATL-COM-DAQ-2005-008 ; CERN-ATL-DAQ-CONF-2005-004. - 2005. - 5 p.
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4.
Implementation and performance of a tau lepton selection within the ATLAS trigger system at the LHC / Casado, M P (Barcelona, IFAE) ; Dos Anjos, A (Barcelona, IFAE) ; Armstrong, S (Barcelona, IFAE) ; Baines, J T M (Barcelona, IFAE) ; Bee, C P (Barcelona, IFAE) ; Biglietti, M (Barcelona, IFAE) ; Bogarets, A (Barcelona, IFAE) ; Bosman, M (Barcelona, IFAE) ; Caron, B (Barcelona, IFAE) ; Cataldi, G (Barcelona, IFAE) et al. /ATLAS High-Level Trigger Group
The ATLAS experiment at the Large Hadron Collider (LHC) has an interaction rate of up to $10^9$ Hz. The trigger must efficiently select interesting events while rejecting the large amount of background. [...]
ATL-DAQ-PUB-2006-003; ATL-COM-DAQ-2005-044.- Geneva : CERN, 2006 Fulltext: PDF;
In : 9th ICATPP Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications, Como, Italy, 17 - 21 Oct 2005, pp.546-550
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5.
Online Muon Reconstruction in the ATLAS Level-2 trigger system / Di Mattia, A ; Armstrong, S ; Dos Anjos, A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
To cope with the 40 MHz event production rate of LHC, the trigger of the ATLAS experiment selects the events in three sequential steps of increasing complexity and accuracy whose final results are close to the offline reconstruction. [...]
ATL-DAQ-CONF-2005-013 ; ATL-COM-DAQ-2005-004. - 2004. - 7 p.
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6.
Architecture of the ATLAS High Level Trigger Event Selection Software / Grothe, Monika (CERN) ; Armstrong, S. ; Assamagan, K.A. ; Baines, J.T. ; Bee, C.P. ; Biglietti, M. ; Bogaerts, A. ; Boisvert, V. ; Bosman, M. ; Brandt, S. et al.
The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. [...]
physics/0306097 ; CHEP-2003-WEPT004 ; ATL-DAQ-2003-030 ; ATL-COM-DAQ-2003-016. - 2004. - 10 p.
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7.
Studies with the ATLAS Trigger and Data Acquisition "Pre-Series'' Setup / Ünel, G ; Abolins, M ; Adragna, P ; Alexandrov, I ; Amorim, A ; Armstrong, S ; Badescu, E ; Baines, J T M ; Barros, N ; Beck, H P et al.
The pre-series test bed is used to validate the technology and implementation choices by comparing the final ATLAS readout requirements, to the results of performance, functionality and stability studies. [...]
ATL-DAQ-CONF-2006-019 ; ATL-COM-DAQ-2006-010. - 2006.
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8.
Testing on a Large Scale : running the ATLAS Data Acquisition and High Level Trigger Software on 700 PC Nodes / Burckhart-Chromek, Doris (CERN) ; Abolins, M ; Adragna, P ; Albuquerque-Portes, M ; Alexandrov, L ; Amorim, A ; Armstrong, S ; Badescu, E ; Baines, J T M ; Barros, N et al.
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and event filter operations. [...]
ATL-DAQ-CONF-2006-002 ; ATL-COM-DAQ-2006-008 ; CERN-ATL-DAQ-CONF-2006-002. - 2006. - 6 p.
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9.
Testing on a Large Scale : Running the ATLAS Data Acquisition and High Level Trigger Software on 700 PC Nodes / Burckhart-Chromek, Doris (CERN) ; Abolins, M ; Adragna, P ; Alexandrov, L ; Amorim, A ; Armstrong, S ; Badescu, E ; Baines, J T M ; Barros, N ; Beck, H P et al.
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and event filter operations. [...]
ATL-DAQ-CONF-2006-002 ; ATL-COM-DAQ-2006-008 ; CERN-ATL-DAQ-CONF-2006-002. - 2006. - 6 p.
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10.
Algorithms for the ATLAS High Level Trigger / Armstrong, S R ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S ; Caron, B ; Casado, M P et al. /PESA Core Algorithms Group
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the LHC. The functional components within this system responsible for generating elements of the trigger decisions are algorithms running within the software architecture. [...]
2004 - Published in : IEEE Trans. Nucl. Sci. 51 (2004) 367-374
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11.
ATLAS High Level Trigger Infrastructure, ROI Collection and Event Building / Kordas, K ; Armstrong, S ; Baines, J T M ; Beck, H P ; Bee, C ; Bogaerts, A ; Bold, T ; Bosman, M ; Comune, G ; Cranfield, R et al.
We describe the base-line design and implementation of the Data Flow and High Level Trigger (HLT) part of the ATLAS Trigger and Data Acquisition (TDAQ) system. [...]
ATL-DAQ-CONF-2007-002 ; ATL-COM-DAQ-2006-009. - 2006.
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12.
The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger / Comune, G. (Bern U., LHEP) ; Corso-Radu, A. (Bern U., LHEP) ; Elsing, M. (CERN) ; Grothe, M. (CERN) ; Schoerner-Sadenius, Thomas (CERN) ; Wicke, D. (Wuppertal U.) ; George, S. (Royal Holloway, U. of London) ; Lowe, A. (Royal Holloway, U. of London) ; Shears, T. (Liverpool U.) ; Baines, J.T. (Rutherford) et al.
Given the extremely high output rate foreseen at LHC and the general-purpose nature of ATLAS experiment, an efficient and flexible way to select events in the High Level Trigger is needed. An extremely flexible solution is proposed that allows for early rejection of unwanted events and an easily configurable way to choose algorithms and to specify the criteria for trigger decisions [...]
hep-ex/0306009; ATL-DAQ-2003-031.- Geneva : CERN, 2003 - 8 p. - Published in : eConf: C0303241 (2003) , pp. TUGT007 Access to fulltext: daq-2003-031 - PDF; steering-chep - PPT; External links: CERNREP; CERNNO; ECONF
In : 2003 Conference for Computing in High-Energy and Nuclear Physics, La Jolla, CA, USA, 24 - 28 Mar 2003, pp.TUGT007
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13.
Muon Reconstruction and Identification for the Event Filter of the ATLAS experiment / Ventura, A ; Dos Anjos, A ; Armstrong, S ; Baines, J T M ; Bee, C P ; Bellomo, M ; Biglietti, M ; Bogaerts, J A C ; Bosman, M ; Carlino, G et al.
The ATLAS Trigger requires high efficiency and selectivity in order to keep the full physics potential of the experiment and to reject uninteresting processes from the 40 MHz event production rate of the LHC. [...]
ATL-DAQ-CONF-2007-001 ; ATL-COM-DAQ-2005-035. - 2005. - 5 p.
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14.
Implementation and Performance of the Seeded Reconstruction for the ATLAS Event Filter Selection Software / Santamarina-Rios, C ; Conde-Muíño, P ; Dos Anjos, A ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Bosman, M ; Caron, B et al.
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. [...]
ATL-DAQ-CONF-2005-032 ; ATL-COM-DAQ-2005-026 ; CERN-ATL-DAQ-CONF-2005-032. - 2007. - 5 p.
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15.
Muon Event Filter Software for the ATLAS Experiment at LHC / Biglietti, M ; Armstrong, S ; Assamagan, Ketevi A ; Baines, J T M ; Bee, C P ; Bellomo, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
At LHC the 40 MHz bunch crossing rate dictates a high selectivity of the ATLAS Trigger system, which has to keep the full physics potential of the experiment in spite of a limited storage capability. The level-1 trigger, implemented in a custom hardware, will reduce the initial rate to 75 kHz and is followed by the software based level-2 and Event Filter, usually referred as High Level Triggers (HLT), which further reduce the rate to about 100 Hz. [...]
ATL-DAQ-CONF-2005-008; ATL-COM-DAQ-2005-005.- Geneva : CERN, 2005 Access to fulltext: daq-conf-2005-008 - PDF; trigmoorechep04 - PPT; Published version from CERN: PDF;
In : Computing in High Energy Physics and Nuclear Physics 2004, Interlaken, Switzerland, 27 Sep - 1 Oct 2004, pp.334 (CERN-2005-002)
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16.
Implementation and Performance of the Event Filter Muon Selection for the ATLAS experiment at LHC / Ventura, A ; Armstrong, S ; Assamagan, Ketevi A ; Baines, J T M ; Bee, C P ; Bellomo, M ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M et al.
The ATLAS Trigger system is composed of three levels: an initial hardware trigger level (LVL1) followed by two software-based stages (LVL2 trigger and Event Filter) included in the High Level Trigger (HLT) and implemented on processor farms. [...]
ATL-DAQ-CONF-2005-015 ; ATL-COM-DAQ-2005-002. - 2005. - 5 p.
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17.
Development and Tests of the Event Filter for the ATLAS Experiment / Bosman, M ; Meessen, C ; Negri, A ; Segura, E ; Sushkov, S ; Touchard, F ; Wheeler, S J
The Trigger and Data Acquisition (TDAQ) System of the ATLAS Experiment comprises three stages of event selection. [...]
ATL-DAQ-CONF-2005-027 ; ATL-COM-DAQ-2005-025 ; CERN-ATL-DAQ-CONF-2005-027. - 2005. - 6 p.
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18.
A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer / Di Mattia, A ; Armstrong, S ; Dos Anjos, A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
The ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. [...]
ATL-DAQ-CONF-2005-005 ; ATL-COM-DAQ-2005-003 ; CERN-ATL-DAQ-CONF-2005-005. - CERN, 2005. - 4 p.
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19.
Overview of the High-Level Trigger Electron and Photon Selection for the ATLAS Experiment at the LHC / Gesualdi-Mello, A ; Anjos, A ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Bosman, M ; Caron, B ; Casado, M P et al.
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center-of-mass energy, whilst rejecting the enormous number of background events. [...]
ATL-DAQ-CONF-2006-011 ; ATL-COM-DAQ-2005-024 ; CERN-ATL-COM-DAQ-2005-024. - 2006. - 5 p.
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20.
Deployment of the ATLAS High-Level Triggers / Anjos, A (CERN) ; Armstrong, S ; Baines, J T M ; Beck, H P ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Bosman, M ; Burckhart, Doris ; Caprini, M et al.
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Triggers (HLT). [...]
ATL-DAQ-CONF-2005-033 ; ATL-COM-DAQ-2005-023 ; CERN-ATL-DAQ-CONF-2005-033. - 2005. - 5 p.
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21.
Deployment and use of the ATLAS DAQ in the Combined Test Beam / Gadomski, S ; Abolins, M ; Alexandrov, I ; Amorim, A ; Padilla-Aranda, A ; Badescu, E ; Barros, N ; Beck, H P ; Blair, R ; Burckhart-Chromek, Doris et al.
The ATLAS collaboration at CERN operated a Combined Test Beam (CTB) from May until November 2004. [...]
ATL-DAQ-CONF-2005-019 ; ATL-COM-DAQ-2005-014. - 2006. - 5 p.
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22.
Muon Identification with the Event Filter of the ATLAS Experiment at CERN LHC's / Dos Anjos, A ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Bosman, M ; Carlino, G ; Caron, B ; Casado, M P et al.
The Large Hadron Collider at CERN offers unprecedented challenges to the design and construction of detectors and trigger/data acquisition systems. [...]
ATL-DAQ-CONF-2005-018 ; ATL-COM-DAQ-2005-013. - 2005. - 5 p.
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23.
Implementation and Performance of the High Level Trigger Electron and Photon Selection for the ATLAS Experiment at the LHC / Schiavi, C ; Armstrong, S ; Dos Anjos, A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center of mass energy, while rejecting the enormous number of background events, stemming from an interaction rate of up to 10^9 Hz. [...]
ATL-DAQ-CONF-2005-014 ; ATL-COM-DAQ-2005-012 ; CERN-ATL-DAQ-CONF-2005-014. - CERN, 2005.
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24.
System test of the ATLAS muon spectrometer in the H8 test area: program for year 2002 / Alexopoulos, T ; Gazis, E N ; Tsipolitis, Y ; Ahlen, S P ; Bensinger, J ; Hashemi, K S ; Amelung, C ; Andreazza, W ; Cerutti, F ; Palestini, S et al.
The plans for the extension of the system test of the ATLAS muon spectrometer in year 2002 are outlined. [...]
ATL-MUON-2005-010 ; ATL-COM-MUON-2002-007 ; CERN-ATL-COM-MUON-2002-007. - 2002.
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25.
Portable Gathering System for Monitoring and Online Calibration at ATLAS / Conde-Muíño, P ; Armstrong, S ; Dos Anjos, A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, J A C (CERN) ; Boisvert, V ; Bosman, M ; Caron, B et al.
During the runtime of any experiment, a central monitoring system that detects problems as soon as they appear has an essential role. [...]
ATL-DAQ-2004-014 ; CERN-ATL-DAQ-2004-014 ; ATL-COM-DAQ-2004-020 ; CERN-ATL-COM-DAQ-2004-020. - CERN, 2005. - 4 p.
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26.
The Second Level Trigger of the ATLAS Experiment at CERN's LHC / Dos Anjos, A ; Abolins, M ; Armstrong, S ; Baines, J T M ; Barisonzi, M ; Beck, H P ; Bee, C P ; Beretta, M ; Biglietti, M ; Blair, R et al.
The Trigger System of the ATLAS experiment reduces the rate of events produced by proton-proton collisions at CERN's Large Hadron Collider (LHC) in three successive steps from 40 MHz to ~ 100, 1 and 0.2 kHz respectively. [...]
ATL-DAQ-2003-052 ; CERN-ATL-DAQ-2003-052. - 2003. - 5 p.
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27.
Architecture of the ATLAS online physics-selection software at the LHC / Casado, M P ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S ; Caron, B et al.
Given the extremely high bunch crossing rate foreseen at the Large Hadron Collider (LHC) and the general-purpose nature of the ATLAS particle physics experiment, after the hardware-based first level trigger, an efficient and flexible trigger software is needed for the online selection of events. [...]
ATL-DAQ-2003-050. - 2003. - 5 p.
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28.
Architecture of the ATLAS High Level Triggers Event Selection Software / Konstantinidis, N P ; Armstrong, S ; Assamagan, Ketevi A ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S et al.
ATL-DAQ-2003-046. - 2004.
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29.
Supervision of the ATLAS High Level Trigger System / Wheeler, S. (Alberta U.) ; Flammer, J. (CERN) ; Meessen, C. (Marseille, CPPM) ; Qian, Z. (Marseille, CPPM) ; Touchard, F. (Marseille, CPPM) ; Negri, France A. (Pavia U. ; INFN, Pavia) ; Zobernig, H. (Wisconsin U., Madison)
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. [...]
hep-ex/0305093; CHEP-2003-TUGT009; ATL-DAQ-2003-010; ATL-DAQ-2003-010.- Geneva : CERN, 2003 - 6 p. - Published in : eConf: C0303241 (2003) , pp. TUGT009 Access to fulltext: daq-2003-010 - PDF; daq-2003-010_chep_talk - PDF; Fulltext: PDF; External links: Fulltext; Proceedings write-up on eConf
In : 2003 Conference for Computing in High-Energy and Nuclear Physics, La Jolla, CA, USA, 24 - 28 Mar 2003, pp.TUGT009
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30.
Configuration of the ATLAS Trigger System / Elsing, M. (CERN) ; Schoerner-Sadenius, Thomas (CERN ; Hamburg U.)
In this paper a conceptual overview is given of the software foreseen to configure the ATLAS trigger system. [...]
physics/0306046 ; ATL-DAQ-2003-038 ; CHEP-2003-THGT010 ; physics/0306046. - 2003. - 8 p.
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31.
Studies for a common selection software environment in ATLAS : from the Level-2 Trigger to the offline reconstruction / Wiedenmann, W ; Armstrong, S R ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S ; Caron, B et al.
The Atlas High Level Trigger's primary function of event selection will be accomplished with a Level-2 trigger farm and an Event Filter farm, both running software components developed in the Atlas offline reconstruction framework. [...]
ATL-DAQ-2003-037 ; CERN-ATL-DAQ-2003-037. - 2004.
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32.
A New Implementation of the Region-of-Interest Strategy for the ATLAS Second Level Trigger / Boisvert, V ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Bosman, M ; Brandt, S ; Caron, B ; Casado, M P et al.
Among the many challenges presented by the future ATLAS detector at the LHC are the high data taking rate and volume and the derivation of a rapid trigger decis ion with limited resources. [...]
ATL-DAQ-2003-034. - 2003. - 6 p.
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35.
An Overview of Algorithms for the ATLAS High Level Trigger / Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S ; Caron, B ; Casado, M P et al.
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the LHC. [...]
ATL-CONF-2003-003 ; ATL-DAQ-2003-029. - 2004. - 7 p.
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36.
An Overview of the ATLAS High Level Trigger Dataflow and Supervision / Wheeler, S ; Armstrong, S ; Baines, J T M ; Bee, C P ; Biglietti, M ; Bogaerts, A ; Boisvert, V ; Bosman, M ; Brandt, S ; Caron, B et al.
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. [...]
ATL-DAQ-2003-013. - 2004. - 6 p.
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38.
Event Filter infrastructure validation tests / Wheeler, S ; Bosman, M ; Merino, G ; Sánchez, C ; Segura, E ; Bee, C P ; Meessen, C ; Qian, Z ; Touchard, F ; Negri, N
We present here a summary of the validation tests which have been done on the different components of the Event Filter infrastructure..
ATL-DAQ-2003-006. - 2003.
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39.
High-level triggers in ATLAS / Radu, A ; Baines, J T M ; Baratella, A ; Caron, B ; Davis, R A ; Di Mattia, S ; Elsing, M ; Epp, B ; Falciano, S ; Ghete, V M et al.
The trigger and data-acquisition system of ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), will be based on three levels of online selection. Starting from the bunch-crossing rate of 40 MHz (an interaction rate of 1 GHz at design luminosity-~ 10/sup 34 / cm/sup -2/s/sup -1/), the first level trigger (LVL1) will reduce the rate to about 75 kHz using purpose-built hardware. [...]
2002 - Published in : IEEE Trans. Nucl. Sci. 49 (2002) 377-82
In : 12th IEEE-NPSS Real Time Conference, Valencia, Spain, 4 - 8 Jun 2001, pp.377-82
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40.
ATLAS TDAQ/DCS Event filter : Supervision Requirements / Bee, C P ; Etienne, F ; Meessen, C ; Qian, Z ; Touchard, F ; Green, P ; Pinfold, J L ; Wheeler, S ; Negri, A ; Scannicchio, D A et al.
The second iteration of the Software Development Process of the ATLAS Event Filter has been launched. [...]
ATL-DAQ-2002-004. - 2002. - 21 p.
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41.
ATLAS TDAQ/DCS Event Filter Event Handler Requirements / Bee, C P ; Etienne, F ; Meessen, C ; Qian, Z ; Touchard, F ; Green, P ; Pinfold, J L ; Wheeler, S ; Negri, A ; Scannicchio, D A et al.
The second iteration of the Software Development Process of the ATLAS Event Filter has been launched. [...]
ATL-DAQ-2002-003. - 2002. - 18 p.
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42.
Event Filter Summary Document / Beck, H P ; Bee, C P ; Boissat, C ; Bosman, M ; Davis, R ; Duval, P Y ; Etienne, F ; Fede, E ; Francis, D J ; Green, P et al.
ATL-DAQ-2000-005. - 2000.
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43.
The ATLAS event filter / Beck, H P ; Bee, C P ; Boissat, C ; Davis, R ; Duval, P Y ; Etienne, F ; Fede, E ; Francis, D ; Green, P ; Hemmer, F et al.
An overview of the studies for the ATLAS Event Filter is given. The architecture and the high level design of the DAQ-1 prototype is presented. [...]
Geneva : CERN, 1999
In : 11th IEEE NPSS Real Time Conference, Santa Fe, NM, USA, 14 - 18 Jun 1999, pp.503-6
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44.
Prototype of an SMP based sub-farm of the ATLAS event filter / Negri, A ; Polesello, G ; Scannicchio, D A ; Stanescu, C ; Vercesi, V
The Event Filter system in the ATLAS experiment at the CERN Large Hadron Collider (LHC) is required to implement the final on-line event selection in the Data Acquisition system on a processor farm. The Symmetric Multi Processor (SMP) implementation of the Event Filter is attractive because it offers advantages in data sharing and transfer between the different hardware and software components. [...]
1999
In : 11th IEEE NPSS Real Time Conference, Santa Fe, NM, USA, 14 - 18 Jun 1999, pp.484-6
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45.
Construction and test of a full-scale prototype of an ATLAS muon spectrometer tracking chamber / Biscossa, A ; Cambiaghi, M ; Conta, C ; Ferrari, R ; Fraternali, M ; Freddi, A ; Iuvino, G ; Lanza, A ; Livan, M ; Negri, A et al.
ATL-MUON-98-244. - 1999. - 34 p.
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46.
Calypso : a full-scale MDT prototype for the ATLAS muon spectrometer / Biscossa, A ; Cambiaghi, M ; Conta, C ; Ferrari, R ; Fraternali, M ; Freddi, A ; Iuvino, G ; Lanza, A ; Livan, M ; Negri, A et al.
1998
In : 8th Vienna Wire Chamber Conference, Vienna, Austria, 23 - 27 Feb 1998, pp.331-5
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47.
Testbeam results from the Calypso MDT Chamber Rev. 24 Oct. 1997 : sent on 20-11-1997 / Bagnaia, P ; Bini, C ; Biscossa, A ; Cambiaghi, M ; Ciapetti, G ; Conta, C ; Creti, P ; Daly, C ; Davisson, R ; Deile, M et al.
ATL-MUON-97-196 ; ATL-M-PN-196. - 1997.
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48.
Measurement of the maximum drift time in the Calypso MDT Chamber / Bagnaia, P ; Bini, C ; Negri, A ; Oberson, P ; Rosati, S
ATL-MUON-97-158 ; ATL-M-PN-158. - 1997.
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49.
The First Full-Scale Prototype of a BIL MDT Chamber for the ATLAS Muon Spectrometer / Biscossa, A ; Cambiaghi, M ; Conta, C ; Ferrari, A ; Fraternali, M ; Freddi, A ; Iuvino, G ; Lanza, A ; Livan, M ; Negri, A et al.
ATL-MUON-97-136 ; ATL-M-PN-136. - 1997.
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50.
Performance of the ATLAS Detector using First Collision Data / ATLAS Collaboration
More than half a million minimum-bias events of LHC collision data were collected by the ATLAS experiment in December 2009 at centre-of-mass energies of 0.9 TeV and 2.36 TeV. This paper reports on studies of the initial performance of the ATLAS detector from these data. [...]
arXiv:1005.5254; CERN-PH-EP-2010-015.- Geneva : CERN, 2010 - 65 p. - Published in : JHEP 09 (2010) 056 Fulltext: PDF; Springer Open Access article: PDF; External link: all figures including auxiliary figures
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51.
Integration of the Trigger and Data Acquisition Systems in ATLAS / Abolins, M ; Adragna, P ; Aleksandrov, E ; Aleksandrov, I ; Amorim, A ; Anderson, K ; Anduaga, X ; Dos Anjos, A ; Aracena, I ; Asquith, L et al.
During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. [...]
ATL-COM-DAQ-2008-003. - 2008.
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