Leptonic monotops at the LHC

Autores
Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Drobnak, Jure; Kamenik, Jernej F.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the possibility of detecting new physics (NP) phenomena at the LHC through a new search strategy looking at the monotop (top plus missing energy) signature which is common to a variety of NP models. We focus on the leptonic top decay mode and study the discovery or exclusion reach of the 2012 LHC data for three example models. Contrary to the hadronic mode, in this case the problematic QCD multijet background can be safely neglected. We find that the key kinematic variable to suppress most of the remaining SM backgrounds is the transverse mass of the charged lepton and missing energy. In fact, one could expect that the single-top production measurements already address the monotop signature in this mode. This is, however, not the case, because in the SM single-top production, the transverse mass has an end point determined by the W mass, while the NP signals typically have an additional source of missing energy. We compare, under the same conditions, our monotop search strategy with existing single-top measurements and find a considerable improvement in the monotop signature reach. © 2014 American Physical Society.
Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Drobnak, Jure. National Institute Of Chemistry; Eslovenia
Fil: Kamenik, Jernej F.. National Institute Of Chemistry; Eslovenia
Materia
Monotop
Lhc
Dark Matter
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/77188
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Leptonic monotops at the LHCAlvarez, EzequielColuccio Leskow, EstefaníaDrobnak, JureKamenik, Jernej F.MonotopLhcDark Matterhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the possibility of detecting new physics (NP) phenomena at the LHC through a new search strategy looking at the monotop (top plus missing energy) signature which is common to a variety of NP models. We focus on the leptonic top decay mode and study the discovery or exclusion reach of the 2012 LHC data for three example models. Contrary to the hadronic mode, in this case the problematic QCD multijet background can be safely neglected. We find that the key kinematic variable to suppress most of the remaining SM backgrounds is the transverse mass of the charged lepton and missing energy. In fact, one could expect that the single-top production measurements already address the monotop signature in this mode. This is, however, not the case, because in the SM single-top production, the transverse mass has an end point determined by the W mass, while the NP signals typically have an additional source of missing energy. We compare, under the same conditions, our monotop search strategy with existing single-top measurements and find a considerable improvement in the monotop signature reach. © 2014 American Physical Society.Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Drobnak, Jure. National Institute Of Chemistry; EsloveniaFil: Kamenik, Jernej F.. National Institute Of Chemistry; EsloveniaAmerican Physical Society2014-01info: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/11336/77188Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Drobnak, Jure; Kamenik, Jernej F.; Leptonic monotops at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 89; 1; 1-2014; 14016-140161550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.014016info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.89.014016info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1310.7600info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:43Zoai:ri.conicet.gov.ar:11336/77188instacron: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:34982025-09-29 10:07:43.673CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Leptonic monotops at the LHC
title Leptonic monotops at the LHC
spellingShingle Leptonic monotops at the LHC
Alvarez, Ezequiel
Monotop
Lhc
Dark Matter
title_short Leptonic monotops at the LHC
title_full Leptonic monotops at the LHC
title_fullStr Leptonic monotops at the LHC
title_full_unstemmed Leptonic monotops at the LHC
title_sort Leptonic monotops at the LHC
dc.creator.none.fl_str_mv Alvarez, Ezequiel
Coluccio Leskow, Estefanía
Drobnak, Jure
Kamenik, Jernej F.
author Alvarez, Ezequiel
author_facet Alvarez, Ezequiel
Coluccio Leskow, Estefanía
Drobnak, Jure
Kamenik, Jernej F.
author_role author
author2 Coluccio Leskow, Estefanía
Drobnak, Jure
Kamenik, Jernej F.
author2_role author
author
author
dc.subject.none.fl_str_mv Monotop
Lhc
Dark Matter
topic Monotop
Lhc
Dark Matter
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 possibility of detecting new physics (NP) phenomena at the LHC through a new search strategy looking at the monotop (top plus missing energy) signature which is common to a variety of NP models. We focus on the leptonic top decay mode and study the discovery or exclusion reach of the 2012 LHC data for three example models. Contrary to the hadronic mode, in this case the problematic QCD multijet background can be safely neglected. We find that the key kinematic variable to suppress most of the remaining SM backgrounds is the transverse mass of the charged lepton and missing energy. In fact, one could expect that the single-top production measurements already address the monotop signature in this mode. This is, however, not the case, because in the SM single-top production, the transverse mass has an end point determined by the W mass, while the NP signals typically have an additional source of missing energy. We compare, under the same conditions, our monotop search strategy with existing single-top measurements and find a considerable improvement in the monotop signature reach. © 2014 American Physical Society.
Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Drobnak, Jure. National Institute Of Chemistry; Eslovenia
Fil: Kamenik, Jernej F.. National Institute Of Chemistry; Eslovenia
description We study the possibility of detecting new physics (NP) phenomena at the LHC through a new search strategy looking at the monotop (top plus missing energy) signature which is common to a variety of NP models. We focus on the leptonic top decay mode and study the discovery or exclusion reach of the 2012 LHC data for three example models. Contrary to the hadronic mode, in this case the problematic QCD multijet background can be safely neglected. We find that the key kinematic variable to suppress most of the remaining SM backgrounds is the transverse mass of the charged lepton and missing energy. In fact, one could expect that the single-top production measurements already address the monotop signature in this mode. This is, however, not the case, because in the SM single-top production, the transverse mass has an end point determined by the W mass, while the NP signals typically have an additional source of missing energy. We compare, under the same conditions, our monotop search strategy with existing single-top measurements and find a considerable improvement in the monotop signature reach. © 2014 American Physical Society.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/77188
Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Drobnak, Jure; Kamenik, Jernej F.; Leptonic monotops at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 89; 1; 1-2014; 14016-14016
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/77188
identifier_str_mv Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Drobnak, Jure; Kamenik, Jernej F.; Leptonic monotops at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 89; 1; 1-2014; 14016-14016
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.014016
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.89.014016
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1310.7600
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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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score 13.070432

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