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Measurement of Single-top Quark Production with ATLAS Data

Single-top production processes have been studied using 0.7 fb-1 of data from 7 TeV center-of-mass energy proton-proton collisions collected with the ATLAS detector at the LHC. Single-top is electroweak top production and the standard model includes three production modes. Each contains a Wtb vertex...

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Autor principal: Holzbauer, J.L.
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1392685
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author Holzbauer, J.L.
author_facet Holzbauer, J.L.
author_sort Holzbauer, J.L.
collection CERN
description Single-top production processes have been studied using 0.7 fb-1 of data from 7 TeV center-of-mass energy proton-proton collisions collected with the ATLAS detector at the LHC. Single-top is electroweak top production and the standard model includes three production modes. Each contains a Wtb vertex, allowing the possibility of a direct measurement of the CKM matrix element |Vtb|. Single-top could also be sensitive to new physics, such as flavor changing neutral currents or heavy W' bosons. Using cut-based selections, a limit of < 39.1 pb is set for dilepton Wt production and < 26.5 pb for s-channel production. For the t-channel measurement, both cut-based and neural network analyses are performed and the cross-section is measured to be 90 +32 -22 pb, where 65 +28 -19 pb is expected according to standard model.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13926852023-03-14T18:04:25Zhttp://cds.cern.ch/record/1392685engHolzbauer, J.L.Measurement of Single-top Quark Production with ATLAS DataDetectors and Experimental TechniquesParticle Physics - ExperimentSingle-top production processes have been studied using 0.7 fb-1 of data from 7 TeV center-of-mass energy proton-proton collisions collected with the ATLAS detector at the LHC. Single-top is electroweak top production and the standard model includes three production modes. Each contains a Wtb vertex, allowing the possibility of a direct measurement of the CKM matrix element |Vtb|. Single-top could also be sensitive to new physics, such as flavor changing neutral currents or heavy W' bosons. Using cut-based selections, a limit of < 39.1 pb is set for dilepton Wt production and < 26.5 pb for s-channel production. For the t-channel measurement, both cut-based and neural network analyses are performed and the cross-section is measured to be 90 +32 -22 pb, where 65 +28 -19 pb is expected according to standard model.Single-top production processes have been studied using 0.7 fb-1 of data from 7 TeV center-of-mass energy proton-proton collisions collected with the ATLAS detector at the LHC. Single-top is electroweak top production and the standard model includes three production modes. Each contains a Wtb vertex, allowing the possibility of a direct measurement of the CKM matrix element |Vtb|. Single-top could also be sensitive to new physics, such as flavor changing neutral currents or heavy W' bosons. Using cut-based selections, a limit of < 39.1 pb is set for dilepton Wt production and < 26.5 pb for s-channel production. For the t-channel measurement, both cut-based and neural network analyses are performed and the cross-section is measured to be 90 +32 -22 pb, where 65 +28 -19 pb is expected according to standard model.arXiv:1111.3346oai:cds.cern.ch:13926852011-11-15
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Holzbauer, J.L.
Measurement of Single-top Quark Production with ATLAS Data
title Measurement of Single-top Quark Production with ATLAS Data
title_full Measurement of Single-top Quark Production with ATLAS Data
title_fullStr Measurement of Single-top Quark Production with ATLAS Data
title_full_unstemmed Measurement of Single-top Quark Production with ATLAS Data
title_short Measurement of Single-top Quark Production with ATLAS Data
title_sort measurement of single-top quark production with atlas data
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url http://cds.cern.ch/record/1392685
work_keys_str_mv AT holzbauerjl measurementofsingletopquarkproductionwithatlasdata