THE ATLAS HIGH LEVEL TRIGGER GROUP ∗ (2008)
S. Armstrong, J. T. Baines, C. P. Bee, M. Biglietti, A. Bogaerts, V. Boisvert, ...
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...
H. P. Beck, C. P. Bee, P. Y. Duval, D. Francis, D. Laugier, C. Meessen, ...
2 03 June ‘98 Discussion between DF & EF 4 18 June ‘98 Further discussion in Marseille & with DjF
Atlas DAQ Event Handler Supervisor High Level Design (2008)
C. P. Bee, P-y. Duval, E. Fede, D. Francis, D. Laugier, C. Meessen, ...
This paper describes a first approach of the supervision and control architecture of the Event Handler component of the ATLAS Event Filter system. A prototype implementation of the Supervisor should...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Santamarina-Rios, C, Conde-Muíño, P, Dos Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, ...
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. The ATLAS trigger system has to cope with a rate of 40 MHz and 23...
Gesualdi-Mello, A, Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, ...
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...
Schiavi, C, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
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...
A Level-2 trigger algorithm for the identification of muons in the ATLAS Muon Spectrometer (2005)
Di Mattia, A, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS Level-2 trigger provides a software-based event selection after the initial Level-1 hardware trigger. For the muon events, the selection is decomposed in a number of broad steps: first, the...
The ATLAS Computing Model (2004)
Adams, D, Barberis, D, Bee, C P, Hawkings, R, Jarp, S, Jones, R, ...
The ATLAS Offline Computing Model is described. The main emphasis is on the steady state, when normal running is established. The data flow from the output of the ATLAS trigger system through...
Portable Gathering System for Monitoring and Online Calibration at ATLAS (2004)
Conde-Muíño, P, Armstrong, S, Dos Anjos, A, Baines, J T M, Bee, C P, Biglietti, M, ...
During the runtime of any experiment, a central monitoring system that detects problems as soon as they appear has an essential role. In a large experiment, like ATLAS, the online data acquisition...
An overview of the ATLAS high-level trigger dataflow and supervision (2004)
T. Baines, J., Bee, C.P., Bogaerts, A., Bosman, M., Botterill, D., Caron, B., ...
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 (EF)....
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
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...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
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...
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
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...
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
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...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
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...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
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...
An overview of the ATLAS high-level trigger dataflow and supervision (2004)
T. Baines, J., Bee, C.P., Bogaerts, A., Bosman, M., Botterill, D., Caron, B., ...
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 (EF)....
Armstrong, S., Anjos, A.D., Baines, J.T.M., Bee, C.P., Biglietti, M., Bogaerts, J.A., ...
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...
Ventura, A., Armstrong, S., Assamagan, A., Baines, J.T.M., Bee, C.P., Bellomo, M., ...
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...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
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...
An overview of the ATLAS high-level trigger dataflow and supervision (2004)
T. Baines, J., Bee, C.P., Bogaerts, A., Bosman, M., Botterill, D., Caron, B., ...
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 (EF)....
An Overview of the ATLAS High Level Trigger Dataflow and Supervision (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
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 (EF)....
An Overview of Algorithms for the ATLAS High Level Trigger (2003)
Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, Boisvert, V, ...
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...
Wiedenmann, W, Armstrong, S R, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
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...
Architecture of the ATLAS High Level Trigger Event Selection Software (2003)
Grothe, M, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. Both will be implemented in software, running on mostly commodity hardware. Both...
The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger (2003)
Comune, G, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
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...
Supervision of the ATLAS High Level Trigger System (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
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. The HLT...
CPLEAR results on the CP parameters of neutral kaons decaying to $\pi^+ \pi^- \pi^0$ (1997)
Adler, R, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, Bargassa, P, ...
The CPLEAR experiment measured time-dependent decay-rate asymmetries of \PKz\ and \PaKz\ decaying to \pipmz\ in order to study the interference between the decay amplitudes of \PKzS\ --- either...
Contribution of CPLEAR to the physics of the neutral kaon system (1997)
Pavlopoulos, P, Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, ...
We present the physics results of the CP-- and CPT--violation measurements performed by CPLEAR. CPLEAR has experimentally determined for the first time, the violation of T invariance and is able to...
CPLEAR results on the CP parameters of neutral kaons decaying to $\pi^+ \pi^- \pi^0$ (1997)
Adler, R., Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., ...
The CPLEAR experiment measured time-dependent decay-rate asymmetries of \PKz\ and \PaKz\ decaying to \pipmz\ in order to study the interference between the decay amplitudes of \PKzS\ --- either...
CPLEAR results on the CP parameters of neutral kaons decaying to $\pi^+ \pi^- \pi^0$ (1997)
Adler, R., Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., ...
The CPLEAR experiment measured time-dependent decay-rate asymmetries of \PKz\ and \PaKz\ decaying to \pipmz\ in order to study the interference between the decay amplitudes of \PKzS\ --- either...
CPLEAR results on the CP parameters of neutral kaons decaying to $\pi^+ \pi^- \pi^0$ (1997)
Adler, R., Angelopoulos, A., Apostolakis, A., Aslanides, E., Backenstoss, G., Bargassa, P., ...
The CPLEAR experiment measured time-dependent decay-rate asymmetries of \PKz\ and \PaKz\ decaying to \pipmz\ in order to study the interference between the decay amplitudes of \PKzS\ --- either...
Ajaltouni, Ziad J, Albiol, F, Alifanov, A, Amaral, P, Ambrosini, G, Amorim, A, ...
The first combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the...
The CPLEAR detector at CERN (1996)
Adler, R, Albrecht, W, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, ...
The CPLEAR collaboration has constructed a detector at CERN for an extensive programme of CP-, T- and CPT-symmetry studies using ${\rm K}^0$ and $\bar{\rm K}^0$ produced by the annihilation of...
Observation of the CP-conserving K$_{S}$ --> $\pi^{+}\pi^{- }\pi^{0}$ decay amplitude (1996)
Adler, R, Alhalel, T, Angelopoulos, Angelos, Aspostolakis, A, Aslanides, Elie, Backenstoss, Gerhard, ...
The interference between CP-conserving $\ks$ and $\kl \rightarrow \threepi$ decay amplitudes was observed by studying the decay rate asymmetries between initial $\ko$ and $\kob$ separately for the...
Search for CP-violation in the decay of neutral kaons to $\pi^{+}\pi^{- }\pi^{0}$ (1996)
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
The time-dependent rate asymmetry of initial \ko and \kob decaying into \threepi was measured in order to reveal the CP-violating amplitude of the \ks \rightarrow \threepi decay. For the real and the...
Test of CPT symmetry and quantum mechanics with experimental data from CPLEAR (1995)
Adler, R, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, Bee, C P, ...
We use fits to recent published CPLEAR data on neutral kaon decays to \pi^+\pi^- and \pi e\nu to constrain the CPT--violation parameters appearing in a formulation of the neutral kaon system as an...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Adler, R, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, Bee, C P, ...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Experimental tests of CPT symmetry and quantum mechanics at CPLEAR (1995)
Mavromatos, Nikolaos E, Ellis, Jonathan Richard, López, J L, Nanopoulos, Dimitri V, Adler, R, Alhalel, T, ...
We review a phenomenological parametrization of an open quantum-mechanical formalism for CPT violation in the neutral kaon system, and constrain the parameters using fits to recent CPLEAR data.
The study of the CP, T and CPT symmetries in the CPLEAR experiment (1994)
Yéche, C, Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, ...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Bose-Einstein correlations in $\overline{p}$p annihilations at rest (1994)
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
A measurement of the ratio of the nucleon structure function in copper and deuterium (1992)
Ashman, John Gavin, Badelek, B, Baum, G, Beaufays, J, Bee, C P, Benchouk, C, ...
Muoproduction of J/$\psi$ and the gluon distribution of the nucleon (1992)
Ashman, John Gavin, Badelek, B, Baum, G, Beaufays, J, Bee, C P, Benchouk, C, ...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Adler, R, Alhalel, T, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, ...
Adler, R, Angelopoulos, Angelos, Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, Bee, C P, ...
Comparison of forward hadrons produced in muon interactions on nuclear targets and deuterium (1991)
Ashman, John Gavin, Badelek, B, Baum, G, Beaufays, J, Bee, C P, Benchouk, C, ...
Proton and antiproton production in deep inelastic muon-nucleon scattering at 280 GeV (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
Quark charge retention in final state hadrons from deep inelastic muon scattering (1990)
Albanese, J P, Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Schmitz, N, Becks, K H, ...
Multiplicities of charged hadrons in 280 GeV/c muon-proton scattering (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Ribarics, P, Beaufays, J, ...
rho0 and omega production in deep inelastic mu-p interactions at 280 GeV/c (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
Strangeness production in deep inelastic muon nucleon scattering at 280 GeV (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schouten, M M, Beaufays, J, ...
Exclusive rho0 and phi production in deep inelastic muon scattering (1990)
Ashman, John Gavin, Badelek, B, Baum, G, Beaufays, J, Bee, C P, Benchouk, C, ...
Charge structure of the hadronic final state in deep-inelastic muon-nucleon scattering (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
Shadowing in deep inelastic muon scattering from nuclear targets (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
The FATMEN report: file and tape management: experimental needs (1990)
Curran, C, Gamble, J N, Renshall, Harry R, Shiers, J D, Boucrot, J, Hagelberg, R, ...
Measurements of the nucleon structure function in the range 0.002 $ (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Beaufays, J, Bee, C P, ...
Charge and transverse momentum correlations in deep inelastic muon-proton scattering (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Ribarics, P, Beaufays, J, ...
Jet production and fragmentation properties in deep inelastic muon scattering (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
The Bose-Einstein correlations in deep inelastic mu.p interactions at 280 GeV (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Ribarics, P, Beaufays, J, ...
Inclusive production of the DELTA(1232) resonance in muon-proton scattering at 280 GeV/c (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Ribarics, P, Beaufays, J, ...
Comparison between hadronic final states produced in mu.p and e+e- interactions (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
Measurement of hadron azimuthal distributions in deep inelastic muon proton scattering (1990)
Arneodo, M, Arvidson, A, Aubert, Jean-Jacques, Badelek, B, Schultze, K, Beaufays, J, ...
The vertex and large angle detectors of a spectrometer system for high energy muon physics (1990)
Albanese, J P, Allkofer, O C, Arneodo, M, Aubert, Jean-Jacques, Rousseau, M D, Becks, K H, ...
A study of inclusive proton and antiproton production in 280 GeV/c muon-nucleon scattering. (1983)
Thesis (Ph. D.)--University of Lancaster, 1983.