Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data

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 new phenomena in final states characterized by high jet multiplicity, an isolated lepton (electron or muon) and either zero or at least three b-tagged jets is presented. The search uses 36.1 fb-1 of √s = 13TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. The dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. No signi cant excess over the Standard Model expectation is observed and 95% con fidence-level limits are extracted constraining four simpli ed models of R-parity-violating supersymmetry that feature either gluino or top-squark pair production. The exclusion limits reach as high as 2.1 TeV in gluino mass and 1.2TeV in top-squark mass in the models considered. In addition, an upper limit is set on the cross-section for Standard Model t¯tt¯t production of 60 fb (6.5 x the Standard Model prediction) at 95% con dence level. Finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
hadron-hadron scattering
lepton
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:10915/82170

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network_acronym_str SEDICI
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network_name_str SEDICI (UNLP)
spelling Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision dataAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaHoya, JoaquínMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicahadron-hadron scatteringleptonA search for new phenomena in final states characterized by high jet multiplicity, an isolated lepton (electron or muon) and either zero or at least three b-tagged jets is presented. The search uses 36.1 fb-1 of √s = 13TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. The dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. No signi cant excess over the Standard Model expectation is observed and 95% con fidence-level limits are extracted constraining four simpli ed models of R-parity-violating supersymmetry that feature either gluino or top-squark pair production. The exclusion limits reach as high as 2.1 TeV in gluino mass and 1.2TeV in top-squark mass in the models considered. In addition, an upper limit is set on the cross-section for Standard Model t¯tt¯t production of 60 fb (6.5 x the Standard Model prediction) at 95% con dence level. Finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.Facultad de Ciencias Exactas2017-09-19info: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/10915/82170enginfo:eu-repo/semantics/altIdentifier/issn/1029-8479info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP09(2017)088info: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:10915/82170Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:22.51SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
title Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
spellingShingle Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
Alconada Verzini, María Josefina
Ciencias Exactas
Física
hadron-hadron scattering
lepton
title_short Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
title_full Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
title_fullStr Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
title_full_unstemmed Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
title_sort Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s = 13 TeV proton-proton collision data
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
lepton
topic Ciencias Exactas
Física
hadron-hadron scattering
lepton
dc.description.none.fl_txt_mv A search for new phenomena in final states characterized by high jet multiplicity, an isolated lepton (electron or muon) and either zero or at least three b-tagged jets is presented. The search uses 36.1 fb-1 of √s = 13TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. The dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. No signi cant excess over the Standard Model expectation is observed and 95% con fidence-level limits are extracted constraining four simpli ed models of R-parity-violating supersymmetry that feature either gluino or top-squark pair production. The exclusion limits reach as high as 2.1 TeV in gluino mass and 1.2TeV in top-squark mass in the models considered. In addition, an upper limit is set on the cross-section for Standard Model t¯tt¯t production of 60 fb (6.5 x the Standard Model prediction) at 95% con dence level. Finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.
Facultad de Ciencias Exactas
description A search for new phenomena in final states characterized by high jet multiplicity, an isolated lepton (electron or muon) and either zero or at least three b-tagged jets is presented. The search uses 36.1 fb-1 of √s = 13TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. The dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. No signi cant excess over the Standard Model expectation is observed and 95% con fidence-level limits are extracted constraining four simpli ed models of R-parity-violating supersymmetry that feature either gluino or top-squark pair production. The exclusion limits reach as high as 2.1 TeV in gluino mass and 1.2TeV in top-squark mass in the models considered. In addition, an upper limit is set on the cross-section for Standard Model t¯tt¯t production of 60 fb (6.5 x the Standard Model prediction) at 95% con dence level. Finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.
publishDate 2017
dc.date.none.fl_str_mv 2017-09-19
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/10915/82170
url http://sedici.unlp.edu.ar/handle/10915/82170
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/JHEP09(2017)088
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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