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Searches for new physics in events with top-quark pairs in ATLAS

Many theories beyond the Standard Model (SM) predict new heavy particles that would preferably couple to top quarks. In several direct searches it is assumed that these particle decay via the production of a pair of top quarks. This results either in manifold signatures with top-quark pairs or in a...

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Autor principal: Nackenhorst, Olaf
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2680902
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author Nackenhorst, Olaf
author_facet Nackenhorst, Olaf
author_sort Nackenhorst, Olaf
collection CERN
description Many theories beyond the Standard Model (SM) predict new heavy particles that would preferably couple to top quarks. In several direct searches it is assumed that these particle decay via the production of a pair of top quarks. This results either in manifold signatures with top-quark pairs or in a resonant distribution of the invariant mass of the top quark-pair. In indirect searches it is assumed that SM processes might be affected by massive new particles, such as the enhancement of the rare SM process of four-top-quark production. The results from latest searches, performed by the ATLAS Collaboration with 13 TeV data, for vector-like-quark pair-production, for resonances that decay to a top-quark pair and for four-top-quark production are presented.
id cern-2680902
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling cern-26809022019-09-30T06:29:59Zhttp://cds.cern.ch/record/2680902engNackenhorst, OlafSearches for new physics in events with top-quark pairs in ATLASParticle Physics - ExperimentMany theories beyond the Standard Model (SM) predict new heavy particles that would preferably couple to top quarks. In several direct searches it is assumed that these particle decay via the production of a pair of top quarks. This results either in manifold signatures with top-quark pairs or in a resonant distribution of the invariant mass of the top quark-pair. In indirect searches it is assumed that SM processes might be affected by massive new particles, such as the enhancement of the rare SM process of four-top-quark production. The results from latest searches, performed by the ATLAS Collaboration with 13 TeV data, for vector-like-quark pair-production, for resonances that decay to a top-quark pair and for four-top-quark production are presented.ATL-PHYS-SLIDE-2019-280oai:cds.cern.ch:26809022019-07-02
spellingShingle Particle Physics - Experiment
Nackenhorst, Olaf
Searches for new physics in events with top-quark pairs in ATLAS
title Searches for new physics in events with top-quark pairs in ATLAS
title_full Searches for new physics in events with top-quark pairs in ATLAS
title_fullStr Searches for new physics in events with top-quark pairs in ATLAS
title_full_unstemmed Searches for new physics in events with top-quark pairs in ATLAS
title_short Searches for new physics in events with top-quark pairs in ATLAS
title_sort searches for new physics in events with top-quark pairs in atlas
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2680902
work_keys_str_mv AT nackenhorstolaf searchesfornewphysicsineventswithtopquarkpairsinatlas