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Secondary Vertex Finder Algorithm

If a jet originates from a b-quark, a b-hadron is formed during the fragmentation process. In its dominant decay modes, the b-hadron decays into a c-hadron via the electroweak interaction. Both b- and c-hadrons have lifetimes long enough, to travel a few millimetres before decaying. Thus displaced v...

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Detalles Bibliográficos
Autor principal: Heer, Sebastian
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2276698
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author Heer, Sebastian
author_facet Heer, Sebastian
author_sort Heer, Sebastian
collection CERN
description If a jet originates from a b-quark, a b-hadron is formed during the fragmentation process. In its dominant decay modes, the b-hadron decays into a c-hadron via the electroweak interaction. Both b- and c-hadrons have lifetimes long enough, to travel a few millimetres before decaying. Thus displaced vertices from b- and subsequent c-hadron decays provide a strong signature for a b-jet. Reconstructing these secondary vertices (SV) and their properties is the aim of this algorithm. The performance of this algorithm is studied with tt̄ events, requiring at least one lepton, simulated at 13 TeV.
id cern-2276698
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling cern-22766982019-09-30T06:29:59Zhttp://cds.cern.ch/record/2276698engHeer, SebastianSecondary Vertex Finder AlgorithmParticle Physics - ExperimentIf a jet originates from a b-quark, a b-hadron is formed during the fragmentation process. In its dominant decay modes, the b-hadron decays into a c-hadron via the electroweak interaction. Both b- and c-hadrons have lifetimes long enough, to travel a few millimetres before decaying. Thus displaced vertices from b- and subsequent c-hadron decays provide a strong signature for a b-jet. Reconstructing these secondary vertices (SV) and their properties is the aim of this algorithm. The performance of this algorithm is studied with tt̄ events, requiring at least one lepton, simulated at 13 TeV.ATL-PHYS-SLIDE-2017-634oai:cds.cern.ch:22766982017-08-02
spellingShingle Particle Physics - Experiment
Heer, Sebastian
Secondary Vertex Finder Algorithm
title Secondary Vertex Finder Algorithm
title_full Secondary Vertex Finder Algorithm
title_fullStr Secondary Vertex Finder Algorithm
title_full_unstemmed Secondary Vertex Finder Algorithm
title_short Secondary Vertex Finder Algorithm
title_sort secondary vertex finder algorithm
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2276698
work_keys_str_mv AT heersebastian secondaryvertexfinderalgorithm