Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV

A feasibility study of the measurement of $R = B(t\rightarrow Wb)/B(t \rightarrow Wq)$, where $q=b,s,d$ in the semi-leptonic decay of $t \bar{t}$ events was performed. The measured observable is the probability to detect a given number of $b$-tagged jets, which depends on $R$ and on experimental iss...

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Detalles Bibliográficos
Autor principal: CMS Collaboration
Publicado: 2009
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1194522
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author CMS Collaboration
author_facet CMS Collaboration
author_sort CMS Collaboration
collection CERN
description A feasibility study of the measurement of $R = B(t\rightarrow Wb)/B(t \rightarrow Wq)$, where $q=b,s,d$ in the semi-leptonic decay of $t \bar{t}$ events was performed. The measured observable is the probability to detect a given number of $b$-tagged jets, which depends on $R$ and on experimental issues ($b$-tagging efficiency and mis-tagging probability). We developed an analysis that makes minimal use of simulation and thus may be suitable for early measurements. With an integrated luminosity of 1 \ifb\ at $\sqrt{s}$=10 TeV the expected uncertainties on the $R$ parameter are $\sigma_{stat}=0.12$ and $\sigma_{syst}=0.11$
id cern-1194522
institution Organización Europea para la Investigación Nuclear
publishDate 2009
record_format invenio
spelling cern-11945222019-09-30T06:29:59Zhttp://cds.cern.ch/record/1194522CMS CollaborationPlan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeVParticle Physics - ExperimentA feasibility study of the measurement of $R = B(t\rightarrow Wb)/B(t \rightarrow Wq)$, where $q=b,s,d$ in the semi-leptonic decay of $t \bar{t}$ events was performed. The measured observable is the probability to detect a given number of $b$-tagged jets, which depends on $R$ and on experimental issues ($b$-tagging efficiency and mis-tagging probability). We developed an analysis that makes minimal use of simulation and thus may be suitable for early measurements. With an integrated luminosity of 1 \ifb\ at $\sqrt{s}$=10 TeV the expected uncertainties on the $R$ parameter are $\sigma_{stat}=0.12$ and $\sigma_{syst}=0.11$CMS-PAS-TOP-09-007oai:cds.cern.ch:11945222009
spellingShingle Particle Physics - Experiment
CMS Collaboration
Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title_full Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title_fullStr Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title_full_unstemmed Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title_short Plan for a B(t to Wb)/B(t to Wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 TeV
title_sort plan for a b(t to wb)/b(t to wq) measurement in ttbar semi-leptonic decays at sqrt(s)=10 tev
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1194522
work_keys_str_mv AT cmscollaboration planforabttowbbttowqmeasurementinttbarsemileptonicdecaysatsqrts10tev

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