Top polarization and spin correlation using top pair events in ATLAS experiment

In proton-proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion. Making use of the large number of top quark pairs collected in the 7 TeV data, we present measurements of the spin correlation between top and anti-top quarks using sever...

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Detalles Bibliográficos
Autor principal: chengguang, zhu
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1754324
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author chengguang, zhu
author_facet chengguang, zhu
author_sort chengguang, zhu
collection CERN
description In proton-proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion. Making use of the large number of top quark pairs collected in the 7 TeV data, we present measurements of the spin correlation between top and anti-top quarks using several variables and discuss their sensitivity to new physics. In addition, we present measurements of the top quark polarisation predicted in models with CP-conserving and CP-violating processes. All measurements are consistent with the Standard Model predictions.
id cern-1754324
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17543242019-09-30T06:29:59Zhttp://cds.cern.ch/record/1754324engchengguang, zhuTop polarization and spin correlation using top pair events in ATLAS experimentParticle Physics - ExperimentIn proton-proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion. Making use of the large number of top quark pairs collected in the 7 TeV data, we present measurements of the spin correlation between top and anti-top quarks using several variables and discuss their sensitivity to new physics. In addition, we present measurements of the top quark polarisation predicted in models with CP-conserving and CP-violating processes. All measurements are consistent with the Standard Model predictions.ATL-PHYS-SLIDE-2014-614oai:cds.cern.ch:17543242014-09-09
spellingShingle Particle Physics - Experiment
chengguang, zhu
Top polarization and spin correlation using top pair events in ATLAS experiment
title Top polarization and spin correlation using top pair events in ATLAS experiment
title_full Top polarization and spin correlation using top pair events in ATLAS experiment
title_fullStr Top polarization and spin correlation using top pair events in ATLAS experiment
title_full_unstemmed Top polarization and spin correlation using top pair events in ATLAS experiment
title_short Top polarization and spin correlation using top pair events in ATLAS experiment
title_sort top polarization and spin correlation using top pair events in atlas experiment
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1754324
work_keys_str_mv AT chengguangzhu toppolarizationandspincorrelationusingtoppaireventsinatlasexperiment

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