Long-lived colored scalars at the LHC

Autores
de la Puente, Alejandro; Szynkman, Alejandro Andrés
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the collider signatures of a long-lived massive colored scalar transforming trivially under the weak interaction and decaying within the inner sections of a detector such as ATLAS or CMS. In our study, we assume that the colored scalar couples at tree-level to a top quark and a stable fermion, possibly arising from a dark sector or from supersymmetric extensions of the Standard Model. After implementing the latest experimental searches for long-lived colored scalars, we observe a region of parameter space consistent with a colored electroweak-singlet scalar with mass between (Formula presented.) –350 GeV and a lifetime between 0.1–1  (Formula presented.) together, with a nearly degenerate dark fermion that may be probed at the (Formula presented.)  TeV LHC. We show that a search strategy using a combination of cuts on missing transverse energy and impact parameters can exclude regions of parameter space not accessed by prompt searches. We show that a region of parameter space within our simplified model may naturally arise from the light-stop window regime of supersymmetric extensions of the Standard Model, where a light mostly right-handed stop has a mass slightly larger than the lightest neutralino and decays through a four-body process.
Fil: de la Puente, Alejandro. University of British Columbia; Canadá. Carleton University; Canadá
Fil: Szynkman, Alejandro Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Materia
Long-Lived
Supersymmetry
LHC
Minimal Supersymmetric Standard Model
Light Neutralino
Light Stop
Displace Vertex
Dark Fermion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/74603
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Long-lived colored scalars at the LHCde la Puente, AlejandroSzynkman, Alejandro AndrésLong-LivedSupersymmetryLHCMinimal Supersymmetric Standard ModelLight NeutralinoLight StopDisplace VertexDark Fermionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the collider signatures of a long-lived massive colored scalar transforming trivially under the weak interaction and decaying within the inner sections of a detector such as ATLAS or CMS. In our study, we assume that the colored scalar couples at tree-level to a top quark and a stable fermion, possibly arising from a dark sector or from supersymmetric extensions of the Standard Model. After implementing the latest experimental searches for long-lived colored scalars, we observe a region of parameter space consistent with a colored electroweak-singlet scalar with mass between (Formula presented.) –350 GeV and a lifetime between 0.1–1  (Formula presented.) together, with a nearly degenerate dark fermion that may be probed at the (Formula presented.)  TeV LHC. We show that a search strategy using a combination of cuts on missing transverse energy and impact parameters can exclude regions of parameter space not accessed by prompt searches. We show that a region of parameter space within our simplified model may naturally arise from the light-stop window regime of supersymmetric extensions of the Standard Model, where a light mostly right-handed stop has a mass slightly larger than the lightest neutralino and decays through a four-body process.Fil: de la Puente, Alejandro. University of British Columbia; Canadá. Carleton University; CanadáFil: Szynkman, Alejandro Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaSpringer2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74603de la Puente, Alejandro; Szynkman, Alejandro Andrés; Long-lived colored scalars at the LHC; Springer; European Physical Journal C: Particles and Fields; 76; 3; 3-2016; 124(1-15)1434-60441434-6052CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.07293info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140/epjc/s10052-016-3969-0info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-016-3969-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:35:50Zoai:ri.conicet.gov.ar:11336/74603instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:35:50.707CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Long-lived colored scalars at the LHC
title Long-lived colored scalars at the LHC
spellingShingle Long-lived colored scalars at the LHC
de la Puente, Alejandro
Long-Lived
Supersymmetry
LHC
Minimal Supersymmetric Standard Model
Light Neutralino
Light Stop
Displace Vertex
Dark Fermion
title_short Long-lived colored scalars at the LHC
title_full Long-lived colored scalars at the LHC
title_fullStr Long-lived colored scalars at the LHC
title_full_unstemmed Long-lived colored scalars at the LHC
title_sort Long-lived colored scalars at the LHC
dc.creator.none.fl_str_mv de la Puente, Alejandro
Szynkman, Alejandro Andrés
author de la Puente, Alejandro
author_facet de la Puente, Alejandro
Szynkman, Alejandro Andrés
author_role author
author2 Szynkman, Alejandro Andrés
author2_role author
dc.subject.none.fl_str_mv Long-Lived
Supersymmetry
LHC
Minimal Supersymmetric Standard Model
Light Neutralino
Light Stop
Displace Vertex
Dark Fermion
topic Long-Lived
Supersymmetry
LHC
Minimal Supersymmetric Standard Model
Light Neutralino
Light Stop
Displace Vertex
Dark Fermion
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the collider signatures of a long-lived massive colored scalar transforming trivially under the weak interaction and decaying within the inner sections of a detector such as ATLAS or CMS. In our study, we assume that the colored scalar couples at tree-level to a top quark and a stable fermion, possibly arising from a dark sector or from supersymmetric extensions of the Standard Model. After implementing the latest experimental searches for long-lived colored scalars, we observe a region of parameter space consistent with a colored electroweak-singlet scalar with mass between (Formula presented.) –350 GeV and a lifetime between 0.1–1  (Formula presented.) together, with a nearly degenerate dark fermion that may be probed at the (Formula presented.)  TeV LHC. We show that a search strategy using a combination of cuts on missing transverse energy and impact parameters can exclude regions of parameter space not accessed by prompt searches. We show that a region of parameter space within our simplified model may naturally arise from the light-stop window regime of supersymmetric extensions of the Standard Model, where a light mostly right-handed stop has a mass slightly larger than the lightest neutralino and decays through a four-body process.
Fil: de la Puente, Alejandro. University of British Columbia; Canadá. Carleton University; Canadá
Fil: Szynkman, Alejandro Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
description We study the collider signatures of a long-lived massive colored scalar transforming trivially under the weak interaction and decaying within the inner sections of a detector such as ATLAS or CMS. In our study, we assume that the colored scalar couples at tree-level to a top quark and a stable fermion, possibly arising from a dark sector or from supersymmetric extensions of the Standard Model. After implementing the latest experimental searches for long-lived colored scalars, we observe a region of parameter space consistent with a colored electroweak-singlet scalar with mass between (Formula presented.) –350 GeV and a lifetime between 0.1–1  (Formula presented.) together, with a nearly degenerate dark fermion that may be probed at the (Formula presented.)  TeV LHC. We show that a search strategy using a combination of cuts on missing transverse energy and impact parameters can exclude regions of parameter space not accessed by prompt searches. We show that a region of parameter space within our simplified model may naturally arise from the light-stop window regime of supersymmetric extensions of the Standard Model, where a light mostly right-handed stop has a mass slightly larger than the lightest neutralino and decays through a four-body process.
publishDate 2016
dc.date.none.fl_str_mv 2016-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/74603
de la Puente, Alejandro; Szynkman, Alejandro Andrés; Long-lived colored scalars at the LHC; Springer; European Physical Journal C: Particles and Fields; 76; 3; 3-2016; 124(1-15)
1434-6044
1434-6052
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74603
identifier_str_mv de la Puente, Alejandro; Szynkman, Alejandro Andrés; Long-lived colored scalars at the LHC; Springer; European Physical Journal C: Particles and Fields; 76; 3; 3-2016; 124(1-15)
1434-6044
1434-6052
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1504.07293
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140/epjc/s10052-016-3969-0
info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-016-3969-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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