The ATLAS trigger: high-level trigger commissioning and operation during early data taking
نویسندگان
چکیده
منابع مشابه
Commissioning ATLAS Trigger
The Large Hadron Collider (LHC) at CERN, Geneva, is now starting operation. It will ultimately provide protonproton collisions at a centre-of-mass energy of 14 TeV, a design luminosity of 10 cm−2 s−1 and a bunch-crossing rate of 40 MHz. The ATLAS collaboration has built a general purpose experiment for the LHC which is described in [1][2]. The trigger and data acquisition (T/DAQ) system must wo...
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The ATLAS trigger system is based on three levels of event selection that selects the physics of interest from an initial bunch crossing rate of 40 MHz to an output rate of ∼200 Hz compatible with the offline computing power and storage capacity. During nominal LHC operations at a luminosity of 1034 cm−2s−1, decisions must be taken every 25 ns. The LHC is expected to begin operations with a pea...
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Event selection in the ATLAS High Level Trigger is accomplished to a large extent by reusing software components and event selection algorithms developed and tested in an offline environment. Many of these offline software modules are not specifically designed to run in a heavily multi-threaded online data flow environment. The ATLAS High Level Trigger (HLT) framework based on the GAUDI and ATL...
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We present the design of the first level muon trigger in the central toroid of the ATLAS experiment at the Large Hadron Collider (LHC). The trigger is based on fast, finely segmented gaseous detector, Resistive Plate Chambers (RPC), to unambigously identify the interaction bunch crossing and to provide a sharp threshold over a large interval of transverse momentum. We describe the logic scheme ...
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G. Comune, A. Corso-Radu LHEP, Bern, Switzerland M. Elsing, M. Grothe, T. Schoerner-Sadenius European Laboratory for Particle Physics, Geneva, Switzerland D. Wicke Fachbereich Physik, Gesamthochschule Wuppertal, Bergische Universitaet, Germany S. George, A. Lowe Department of Physics, RHBNC, University of London, Egham, United Kingdom T. Shears Department of Physics, Liverpool University, Unite...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/110/9/092013