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Muon recostruction and selection at the last trigger level of the ATLAS experiment

The three-level Trigger and DAQ system of ATLAS is designed to be very selective while preserving the full physics potential of the experiment; out of the ~1GHz of proton-proton interactions provided by the LHC at nominal operating conditions, ~200 events/sec are retained. This paper focuses on the...

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Autor principal: Crupi, R
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1209258
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author Crupi, R
author_facet Crupi, R
author_sort Crupi, R
collection CERN
description The three-level Trigger and DAQ system of ATLAS is designed to be very selective while preserving the full physics potential of the experiment; out of the ~1GHz of proton-proton interactions provided by the LHC at nominal operating conditions, ~200 events/sec are retained. This paper focuses on the muon reconstruction and selection algorithms employed at the last trigger level. One implements an "outside-in" approach; it starts from a reconstruction in the Muon Spectrometer (MS) and performs a backward extrapolation to the interaction point and track combination in the Inner Detector (ID). The other implements an "inside-out" strategy; it starts muon reconstruction from the ID and extrapolates tracks to MS. Algorithm implementations and results on data from real cosmic rays and simulated collisions are described
id cern-1209258
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12092582019-09-30T06:29:59Zhttp://cds.cern.ch/record/1209258engCrupi, RMuon recostruction and selection at the last trigger level of the ATLAS experimentDetectors and Experimental TechniquesThe three-level Trigger and DAQ system of ATLAS is designed to be very selective while preserving the full physics potential of the experiment; out of the ~1GHz of proton-proton interactions provided by the LHC at nominal operating conditions, ~200 events/sec are retained. This paper focuses on the muon reconstruction and selection algorithms employed at the last trigger level. One implements an "outside-in" approach; it starts from a reconstruction in the Muon Spectrometer (MS) and performs a backward extrapolation to the interaction point and track combination in the Inner Detector (ID). The other implements an "inside-out" strategy; it starts muon reconstruction from the ID and extrapolates tracks to MS. Algorithm implementations and results on data from real cosmic rays and simulated collisions are describedATL-DAQ-SLIDE-2009-288oai:cds.cern.ch:12092582009-09-29
spellingShingle Detectors and Experimental Techniques
Crupi, R
Muon recostruction and selection at the last trigger level of the ATLAS experiment
title Muon recostruction and selection at the last trigger level of the ATLAS experiment
title_full Muon recostruction and selection at the last trigger level of the ATLAS experiment
title_fullStr Muon recostruction and selection at the last trigger level of the ATLAS experiment
title_full_unstemmed Muon recostruction and selection at the last trigger level of the ATLAS experiment
title_short Muon recostruction and selection at the last trigger level of the ATLAS experiment
title_sort muon recostruction and selection at the last trigger level of the atlas experiment
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1209258
work_keys_str_mv AT crupir muonrecostructionandselectionatthelasttriggerleveloftheatlasexperiment