Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data

The efficient and accurate identification of $b$-jets is a vital element for much of the ATLAS Run-2 physics program. Substantial changes to both the inner tracking detector, track reconstruction and $b$-tagging algorithms, have been made between Run-1 and 2, which are expected to significantly impr...

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Detalles Bibliográficos
Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2047871
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description The efficient and accurate identification of $b$-jets is a vital element for much of the ATLAS Run-2 physics program. Substantial changes to both the inner tracking detector, track reconstruction and $b$-tagging algorithms, have been made between Run-1 and 2, which are expected to significantly improve the $b$-tagging performance. This note contains a first study of the modelling of the $b$-tagging in Run-2 using a topologically selected $t\bar{t}$ sample, which has a high $b$-jet purity. Good agreement is found between the data and simulated events.
id cern-2047871
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20478712021-04-18T19:40:44Zhttp://cds.cern.ch/record/2047871engThe ATLAS collaborationCommissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 dataParticle Physics - ExperimentThe efficient and accurate identification of $b$-jets is a vital element for much of the ATLAS Run-2 physics program. Substantial changes to both the inner tracking detector, track reconstruction and $b$-tagging algorithms, have been made between Run-1 and 2, which are expected to significantly improve the $b$-tagging performance. This note contains a first study of the modelling of the $b$-tagging in Run-2 using a topologically selected $t\bar{t}$ sample, which has a high $b$-jet purity. Good agreement is found between the data and simulated events.ATL-PHYS-PUB-2015-039oai:cds.cern.ch:20478712015-08-31
spellingShingle Particle Physics - Experiment
The ATLAS collaboration
Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title_full Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title_fullStr Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title_full_unstemmed Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title_short Commissioning of the ATLAS $b$-tagging algorithms using $t\bar{t}$ events in early Run-2 data
title_sort commissioning of the atlas $b$-tagging algorithms using $t\bar{t}$ events in early run-2 data
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2047871
work_keys_str_mv AT theatlascollaboration commissioningoftheatlasbtaggingalgorithmsusingtbarteventsinearlyrun2data

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