Production of top pair events with additional radiation using the ATLAS detector at the LHC

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The large centre-of-mass energy available at the proton-proton collider LHC allows for the copious production of top quark pairs in association with other final state particles at high transverse momentum. The ATLAS experiment has measured several final state observables that are sensitive to additi...

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Autor principal: Bellagamba, L
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1742096
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author Bellagamba, L
author_facet Bellagamba, L
author_sort Bellagamba, L
collection CERN
description The large centre-of-mass energy available at the proton-proton collider LHC allows for the copious production of top quark pairs in association with other final state particles at high transverse momentum. The ATLAS experiment has measured several final state observables that are sensitive to additional parton radiation in top anti-top quark final states. Examples are the multiplicity of jets for various transverse momentum thresholds or the probability to emit jets above a given threshold in a fixed rapidity region. These measurements are compared to modern Monte Carlo generators based on NLO QCD matrix element or LO multi-leg matrix elements. The data are able to constrain the uncertainty on the modelling of the top pair production mechanism. We also discuss top production in association with photons and Z bosons. In addition, we discuss the production of top quark pairs in association with heavy quarks.
id cern-1742096
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17420962022-08-10T20:14:02Zhttp://cds.cern.ch/record/1742096engBellagamba, LProduction of top pair events with additional radiation using the ATLAS detector at the LHCParticle Physics - ExperimentThe large centre-of-mass energy available at the proton-proton collider LHC allows for the copious production of top quark pairs in association with other final state particles at high transverse momentum. The ATLAS experiment has measured several final state observables that are sensitive to additional parton radiation in top anti-top quark final states. Examples are the multiplicity of jets for various transverse momentum thresholds or the probability to emit jets above a given threshold in a fixed rapidity region. These measurements are compared to modern Monte Carlo generators based on NLO QCD matrix element or LO multi-leg matrix elements. The data are able to constrain the uncertainty on the modelling of the top pair production mechanism. We also discuss top production in association with photons and Z bosons. In addition, we discuss the production of top quark pairs in association with heavy quarks.ATL-PHYS-PROC-2014-069oai:cds.cern.ch:17420962014
spellingShingle Particle Physics - Experiment
Bellagamba, L
Production of top pair events with additional radiation using the ATLAS detector at the LHC
title Production of top pair events with additional radiation using the ATLAS detector at the LHC
title_full Production of top pair events with additional radiation using the ATLAS detector at the LHC
title_fullStr Production of top pair events with additional radiation using the ATLAS detector at the LHC
title_full_unstemmed Production of top pair events with additional radiation using the ATLAS detector at the LHC
title_short Production of top pair events with additional radiation using the ATLAS detector at the LHC
title_sort production of top pair events with additional radiation using the atlas detector at the lhc
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1742096
work_keys_str_mv AT bellagambal productionoftoppaireventswithadditionalradiationusingtheatlasdetectoratthelhc

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