Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$

We present a search for a heavy vector-like quark with charge 2/3 (top partner, T). We search for events where the top partner is produced in pairs and where at least one of them decays into a top quark and a Higgs boson. We focus on the decays of the Higgs boson to photons to allow for full mass re...

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Detalles Bibliográficos
Autor principal: Fasanella, Giuseppe
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1393/ncc/i2015-15147-5
http://cds.cern.ch/record/2013717
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author Fasanella, Giuseppe
author_facet Fasanella, Giuseppe
author_sort Fasanella, Giuseppe
collection CERN
description We present a search for a heavy vector-like quark with charge 2/3 (top partner, T). We search for events where the top partner is produced in pairs and where at least one of them decays into a top quark and a Higgs boson. We focus on the decays of the Higgs boson to photons to allow for full mass reconstruction. The observed data are in agreement with the standard model prediction. We proceed to set observed (expected) 95% confidence level upper limits on the production cross section of strong T¯T production, excluding the existence of top quark partners with mass up to 540 (607) GeV using 19.7 fb −1 of integrated luminosity.
id cern-2013717
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-20137172022-08-10T12:39:44Zdoi:10.1393/ncc/i2015-15147-5http://cds.cern.ch/record/2013717engFasanella, GiuseppeSearch for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$Detectors and Experimental TechniquesWe present a search for a heavy vector-like quark with charge 2/3 (top partner, T). We search for events where the top partner is produced in pairs and where at least one of them decays into a top quark and a Higgs boson. We focus on the decays of the Higgs boson to photons to allow for full mass reconstruction. The observed data are in agreement with the standard model prediction. We proceed to set observed (expected) 95% confidence level upper limits on the production cross section of strong T¯T production, excluding the existence of top quark partners with mass up to 540 (607) GeV using 19.7 fb −1 of integrated luminosity.CMS-CR-2015-026oai:cds.cern.ch:20137172015-04-07
spellingShingle Detectors and Experimental Techniques
Fasanella, Giuseppe
Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title_full Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title_fullStr Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title_full_unstemmed Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title_short Search for pair production of vector-like partners of the top quark (T), with T$\rightarrow$tH, H $\rightarrow \gamma\gamma$
title_sort search for pair production of vector-like partners of the top quark (t), with t$\rightarrow$th, h $\rightarrow \gamma\gamma$
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1393/ncc/i2015-15147-5
http://cds.cern.ch/record/2013717
work_keys_str_mv AT fasanellagiuseppe searchforpairproductionofvectorlikepartnersofthetopquarktwithtrightarrowthhrightarrowgammagamma

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