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Real-Time selection using flavour-tagging algorithms in ATLAS

The ATLAS experiment developed a two-layered trigger system that allows a selection of events that are thought to be of interest, while achieving a high overall rejection against less interesting processes. In particular, the b-jet triggers can exploit flavor-tagging algorithms in order to identify...

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Autor principal: Varni, Carlo
Lenguaje:ita
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2672657
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author Varni, Carlo
author_facet Varni, Carlo
author_sort Varni, Carlo
collection CERN
description The ATLAS experiment developed a two-layered trigger system that allows a selection of events that are thought to be of interest, while achieving a high overall rejection against less interesting processes. In particular, the b-jet triggers can exploit flavor-tagging algorithms in order to identify whether a jet is likely to have been produced by heavy-flavor quarks (b- and c-jets) or by light jets (jets from u-, d-, s- and gluon jets). Physics analyses that include processes with large jet multiplicity and b-quarks in the final state, such as Higgs to bottom pairs measurements and SUSY searches, rely on such a capability. An overview of the b-jet triggers with a description of the application and performance of the Multivariate b-tagging algorithms in Run-2 will be presented. Also, the improvements foreseen for Run-3, which also include the use of the Fast Tracker (FTK) system, will be described.
id cern-2672657
institution Organización Europea para la Investigación Nuclear
language ita
publishDate 2019
record_format invenio
spelling cern-26726572019-09-30T06:29:59Zhttp://cds.cern.ch/record/2672657itaVarni, CarloReal-Time selection using flavour-tagging algorithms in ATLASParticle Physics - ExperimentThe ATLAS experiment developed a two-layered trigger system that allows a selection of events that are thought to be of interest, while achieving a high overall rejection against less interesting processes. In particular, the b-jet triggers can exploit flavor-tagging algorithms in order to identify whether a jet is likely to have been produced by heavy-flavor quarks (b- and c-jets) or by light jets (jets from u-, d-, s- and gluon jets). Physics analyses that include processes with large jet multiplicity and b-quarks in the final state, such as Higgs to bottom pairs measurements and SUSY searches, rely on such a capability. An overview of the b-jet triggers with a description of the application and performance of the Multivariate b-tagging algorithms in Run-2 will be presented. Also, the improvements foreseen for Run-3, which also include the use of the Fast Tracker (FTK) system, will be described.ATL-DAQ-SLIDE-2019-156oai:cds.cern.ch:26726572019-04-26
spellingShingle Particle Physics - Experiment
Varni, Carlo
Real-Time selection using flavour-tagging algorithms in ATLAS
title Real-Time selection using flavour-tagging algorithms in ATLAS
title_full Real-Time selection using flavour-tagging algorithms in ATLAS
title_fullStr Real-Time selection using flavour-tagging algorithms in ATLAS
title_full_unstemmed Real-Time selection using flavour-tagging algorithms in ATLAS
title_short Real-Time selection using flavour-tagging algorithms in ATLAS
title_sort real-time selection using flavour-tagging algorithms in atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2672657
work_keys_str_mv AT varnicarlo realtimeselectionusingflavourtaggingalgorithmsinatlas