Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector

Autores
Alconada Verzini, María Josefina; Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Hoya, Joaquín; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb-1 of √s = 13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via ~t1 → t(*) ~X01 and ~t1 → b~X±1 → bW(*) ~X01, where ~X01 (~X±1) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to t ~X01, top-squark masses in the range 450-1000 GeV are excluded for ~X01 masses below 160 GeV. In the case where m~t1 ~ mt +m~X01 , top-squark masses in the range 235-590 GeV are excluded.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
hadron-hadron scattering
top quark
supersymmetry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/82147
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/82147
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaHoya, JoaquínMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicahadron-hadron scatteringtop quarksupersymmetryA search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb<sup>-1</sup> of √s = 13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via ~t<sub>1</sub> → t(*) ~X<sup>0</sup><sub>1</sub> and ~t<sub>1</sub> → b~X<sup>±</sup><sub>1</sub> → bW(*) ~X<sup>0</sup><sub>1</sub>, where ~X<sup>0</sup><sub>1</sub> (~X<sup>±</sup><sub>1</sub>) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to t ~X<sup>0</sup><sub>1</sub>, top-squark masses in the range 450-1000 GeV are excluded for ~X<sup>0</sup><sub>1</sub> masses below 160 GeV. In the case where m<sub>~t<sub>1</sub></sub> ~ m<sub>t</sub> +m<sub>~X<sup>0</sup><sub>1</sub></sub> , top-squark masses in the range 235-590 GeV are excluded.Facultad de Ciencias Exactas2017-12-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/82147enginfo:eu-repo/semantics/altIdentifier/issn/1029-8479info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP12(2017)085info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:22Zoai:sedici.unlp.edu.ar:10915/82147Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:22.444SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
title Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
spellingShingle Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
Alconada Verzini, María Josefina
Ciencias Exactas
Física
hadron-hadron scattering
top quark
supersymmetry
title_short Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
title_full Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
title_fullStr Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
title_sort Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at √s = 13 TeV with the ATLAS detector
dc.creator.none.fl_str_mv Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author Alconada Verzini, María Josefina
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_role author
author2 Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
hadron-hadron scattering
top quark
supersymmetry
topic Ciencias Exactas
Física
hadron-hadron scattering
top quark
supersymmetry
dc.description.none.fl_txt_mv A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb<sup>-1</sup> of √s = 13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via ~t<sub>1</sub> → t(*) ~X<sup>0</sup><sub>1</sub> and ~t<sub>1</sub> → b~X<sup>±</sup><sub>1</sub> → bW(*) ~X<sup>0</sup><sub>1</sub>, where ~X<sup>0</sup><sub>1</sub> (~X<sup>±</sup><sub>1</sub>) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to t ~X<sup>0</sup><sub>1</sub>, top-squark masses in the range 450-1000 GeV are excluded for ~X<sup>0</sup><sub>1</sub> masses below 160 GeV. In the case where m<sub>~t<sub>1</sub></sub> ~ m<sub>t</sub> +m<sub>~X<sup>0</sup><sub>1</sub></sub> , top-squark masses in the range 235-590 GeV are excluded.
Facultad de Ciencias Exactas
description A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb<sup>-1</sup> of √s = 13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the top squark is assumed to decay via ~t<sub>1</sub> → t(*) ~X<sup>0</sup><sub>1</sub> and ~t<sub>1</sub> → b~X<sup>±</sup><sub>1</sub> → bW(*) ~X<sup>0</sup><sub>1</sub>, where ~X<sup>0</sup><sub>1</sub> (~X<sup>±</sup><sub>1</sub>) denotes the lightest neutralino (chargino). Exclusion limits are placed in terms of the top-squark and neutralino masses. Assuming a branching ratio of 100% to t ~X<sup>0</sup><sub>1</sub>, top-squark masses in the range 450-1000 GeV are excluded for ~X<sup>0</sup><sub>1</sub> masses below 160 GeV. In the case where m<sub>~t<sub>1</sub></sub> ~ m<sub>t</sub> +m<sub>~X<sup>0</sup><sub>1</sub></sub> , top-squark masses in the range 235-590 GeV are excluded.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/82147
url http://sedici.unlp.edu.ar/handle/10915/82147
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1029-8479
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP12(2017)085
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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