Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

The results of a search for direct pair production of heavy top-quark partners in 4.7 fb –1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
Hadron-Hadron scattering
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n11_p1_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2012_n11_p1_Aad
record_format dspace
spelling todo:paper_11266708_v2012_n11_p1_Aad2023-10-03T16:06:50Z Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC Aad, G. Hadron-Hadron scattering The results of a search for direct pair production of heavy top-quark partners in 4.7 fb –1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are searched for in events with two leptons in the final state. No excess above the Standard Model expectation is observed. Limits are placed on the mass of a supersymmetric scalar top and of a spin-1/2 top-quark partner. A spin-1/2 top-quark partner with a mass between 300 GeV and 480 GeV, decaying to a top quark and a neutral non-interacting particle lighter than 100 GeV, is excluded at 95% confidence level. © CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n11_p1_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Hadron-Hadron scattering
spellingShingle Hadron-Hadron scattering
Aad, G.
Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
topic_facet Hadron-Hadron scattering
description The results of a search for direct pair production of heavy top-quark partners in 4.7 fb –1 of integrated luminosity from pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are searched for in events with two leptons in the final state. No excess above the Standard Model expectation is observed. Limits are placed on the mass of a supersymmetric scalar top and of a spin-1/2 top-quark partner. A spin-1/2 top-quark partner with a mass between 300 GeV and 480 GeV, decaying to a top quark and a neutral non-interacting particle lighter than 100 GeV, is excluded at 95% confidence level. © CERN.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_short Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_full Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_fullStr Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_full_unstemmed Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
title_sort search for a heavy top-quark partner in final states with two leptons with the atlas detector at the lhc
url http://hdl.handle.net/20.500.12110/paper_11266708_v2012_n11_p1_Aad
work_keys_str_mv AT aadg searchforaheavytopquarkpartnerinfinalstateswithtwoleptonswiththeatlasdetectoratthelhc
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