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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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Lenguaje: | ita |
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2019
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Acceso en línea: | http://cds.cern.ch/record/2672657 |
_version_ | 1780962473188261888 |
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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 |