Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV

Autores
Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A search for heavy charged long-lived particles is performed using a data sample of 36.1 fb− 1 of proton-proton collisions at √s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R -hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R -hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R -hadrons, as well as staus and charginos of 2000, 1250, 1340, 430, and 1090 GeV, respectively.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Partículas Elementales
proton-proton collisions
la̵rge hadron collider
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:10915/81077

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network_name_str SEDICI (UNLP)
spelling Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeVAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasFísicaPartículas Elementalesproton-proton collisionsla̵rge hadron colliderA search for heavy charged long-lived particles is performed using a data sample of 36.1 fb<sup>− 1</sup> of proton-proton collisions at √s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R -hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R -hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R -hadrons, as well as staus and charginos of 2000, 1250, 1340, 430, and 1090 GeV, respectively.Facultad de Ciencias Exactas2019-05-28info: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/10915/81077enginfo:eu-repo/semantics/altIdentifier/issn/2470-0029info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.99.092007info: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:UNLP2025-09-29T11:15:01Zoai:sedici.unlp.edu.ar:10915/81077Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:01.909SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
title Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
spellingShingle Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
Anduaga, Xabier Sebastián
Ciencias Exactas
Física
Partículas Elementales
proton-proton collisions
la̵rge hadron collider
title_short Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
title_full Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
title_fullStr Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
title_full_unstemmed Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
title_sort Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb<sup>−1</sup> of proton-proton collision data at √s = 13 TeV
dc.creator.none.fl_str_mv Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author Anduaga, Xabier Sebastián
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_role author
author2 Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Partículas Elementales
proton-proton collisions
la̵rge hadron collider
topic Ciencias Exactas
Física
Partículas Elementales
proton-proton collisions
la̵rge hadron collider
dc.description.none.fl_txt_mv A search for heavy charged long-lived particles is performed using a data sample of 36.1 fb<sup>− 1</sup> of proton-proton collisions at √s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R -hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R -hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R -hadrons, as well as staus and charginos of 2000, 1250, 1340, 430, and 1090 GeV, respectively.
Facultad de Ciencias Exactas
description A search for heavy charged long-lived particles is performed using a data sample of 36.1 fb<sup>− 1</sup> of proton-proton collisions at √s = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R -hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R -hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R -hadrons, as well as staus and charginos of 2000, 1250, 1340, 430, and 1090 GeV, respectively.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-28
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/10915/81077
url http://sedici.unlp.edu.ar/handle/10915/81077
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2470-0029
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.99.092007
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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