Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events

The identification of jets originating from b quarks is an important component in analyses searching for new physics and for measurements of standard model processes. Particularly challenging are those involving top-quark or Higgs-boson production with decays in the boosted regime. %DBAM Studies of...

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Detalles Bibliográficos
Autor principal: CMS Collaboration
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1581306
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author CMS Collaboration
author_facet CMS Collaboration
author_sort CMS Collaboration
collection CERN
description The identification of jets originating from b quarks is an important component in analyses searching for new physics and for measurements of standard model processes. Particularly challenging are those involving top-quark or Higgs-boson production with decays in the boosted regime. %DBAM Studies of b-quark jet algorithms and their performances are presented, using multijet events and $\rm{t}\bar{\rm t}$ events recorded in proton-proton collision data at $\sqrt{s}=8$~TeV with the CMS detector in the year 2012. The b-tagging efficiency and misidentification probability are determined in data and in simulation over a wide range of jet transverse momenta from 20~GeV$/c$ to more than 800~GeV$/c$. For the first time in CMS, dedicated studies of b-quark identification in boosted topologies are presented. %DBAM
id cern-1581306
institution Organización Europea para la Investigación Nuclear
publishDate 2013
record_format invenio
spelling cern-15813062019-09-30T06:29:59Zhttp://cds.cern.ch/record/1581306CMS CollaborationPerformance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology eventsDetectors and Experimental TechniquesThe identification of jets originating from b quarks is an important component in analyses searching for new physics and for measurements of standard model processes. Particularly challenging are those involving top-quark or Higgs-boson production with decays in the boosted regime. %DBAM Studies of b-quark jet algorithms and their performances are presented, using multijet events and $\rm{t}\bar{\rm t}$ events recorded in proton-proton collision data at $\sqrt{s}=8$~TeV with the CMS detector in the year 2012. The b-tagging efficiency and misidentification probability are determined in data and in simulation over a wide range of jet transverse momenta from 20~GeV$/c$ to more than 800~GeV$/c$. For the first time in CMS, dedicated studies of b-quark identification in boosted topologies are presented. %DBAMCMS-PAS-BTV-13-001oai:cds.cern.ch:15813062013
spellingShingle Detectors and Experimental Techniques
CMS Collaboration
Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title_full Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title_fullStr Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title_full_unstemmed Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title_short Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
title_sort performance of b tagging at sqrt(s)=8 tev in multijet, ttbar and boosted topology events
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1581306
work_keys_str_mv AT cmscollaboration performanceofbtaggingatsqrts8tevinmultijetttbarandboostedtopologyevents

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