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Track and vertex reconstruction in the ATLAS Experiment

The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excellent performance in the early data from the LHC. However, the rapidly increasing number of interactions per bunch crossing introduces new challenges both in computational aspects and physics performance...

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Autor principal: Meloni, F
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1453736
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author Meloni, F
author_facet Meloni, F
author_sort Meloni, F
collection CERN
description The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excellent performance in the early data from the LHC. However, the rapidly increasing number of interactions per bunch crossing introduces new challenges both in computational aspects and physics performance. The combination of both silicon and gas based detectors provides high precision impact parameter and momentum measurement of charged particles, with high efficiency and small fake rate. Vertex reconstruction is used to identify with high efficiency the hard scattering process and to measure the amount of pile-up interactions, both aspects are crucial for many physics analyses. The performance of track and vertex reconstruction efficiency and resolution achieved in the 2011 data-taking period and perspectives for the 2012 data-taking, were improved algorithms will be used to are presented.
id cern-1453736
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14537362019-09-30T06:29:59Zhttp://cds.cern.ch/record/1453736engMeloni, FTrack and vertex reconstruction in the ATLAS ExperimentDetectors and Experimental TechniquesThe track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excellent performance in the early data from the LHC. However, the rapidly increasing number of interactions per bunch crossing introduces new challenges both in computational aspects and physics performance. The combination of both silicon and gas based detectors provides high precision impact parameter and momentum measurement of charged particles, with high efficiency and small fake rate. Vertex reconstruction is used to identify with high efficiency the hard scattering process and to measure the amount of pile-up interactions, both aspects are crucial for many physics analyses. The performance of track and vertex reconstruction efficiency and resolution achieved in the 2011 data-taking period and perspectives for the 2012 data-taking, were improved algorithms will be used to are presented.ATL-PHYS-SLIDE-2012-310oai:cds.cern.ch:14537362012-06-03
spellingShingle Detectors and Experimental Techniques
Meloni, F
Track and vertex reconstruction in the ATLAS Experiment
title Track and vertex reconstruction in the ATLAS Experiment
title_full Track and vertex reconstruction in the ATLAS Experiment
title_fullStr Track and vertex reconstruction in the ATLAS Experiment
title_full_unstemmed Track and vertex reconstruction in the ATLAS Experiment
title_short Track and vertex reconstruction in the ATLAS Experiment
title_sort track and vertex reconstruction in the atlas experiment
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1453736
work_keys_str_mv AT melonif trackandvertexreconstructionintheatlasexperiment