Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector

The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb −1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (b 1 and t...

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Autor principal:	Aad, G.
Formato:	JOUR
Materias:	Hadron-Hadron scattering Supersymmetry
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_11266708_v2013_n10_p_Aad
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_11266708_v2013_n10_p_Aad
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spelling	todo:paper_11266708_v2013_n10_p_Aad2023-10-03T16:06:56Z Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector Aad, G. Hadron-Hadron scattering Supersymmetry The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb −1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (b 1 and t 1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parityconserving models in which either the bottom or the top squark is the lightest squark. The b 1 is assumed to decay via b 1 → bχ 0 1 and the t 1 via t 1 → bχ ± 1 , with undetectable products of the subsequent decay of the χ ± 1 due to the small mass splitting between the χ ± 1 and the χ 0 1 . © 2013 CERN, for the benefit of the ATLAS collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2013_n10_p_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 Supersymmetry
spellingShingle	Hadron-Hadron scattering Supersymmetry Aad, G. Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
topic_facet	Hadron-Hadron scattering Supersymmetry
description	The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb −1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (b 1 and t 1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parityconserving models in which either the bottom or the top squark is the lightest squark. The b 1 is assumed to decay via b 1 → bχ 0 1 and the t 1 via t 1 → bχ ± 1 , with undetectable products of the subsequent decay of the χ ± 1 due to the small mass splitting between the χ ± 1 and the χ 0 1 . © 2013 CERN, for the benefit of the ATLAS collaboration.
format	JOUR
author	Aad, G.
author_facet	Aad, G.
author_sort	Aad, G.
title	Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_short	Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_full	Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_fullStr	Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_full_unstemmed	Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_sort	search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 tev pp collisions with the atlas detector
url	http://hdl.handle.net/20.500.12110/paper_11266708_v2013_n10_p_Aad
work_keys_str_mv	AT aadg searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
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Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector

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