Electroweak superpartners scrutinized at the LHC in events with multi-leptons

Autores
Lara, Iñaki; Lopez, Daniel Elbio; Muñoz, Carlos
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the framework of the μνSSM, where the presence of R-parity violating (RPV) couplings involving right-handed neutrinos solves the μ problem and can reproduce simultaneously the neutrino data. Left sneutrinos/sleptons are pair-produced at pp collisions decaying to binos, with the latter decaying via RPV to Wℓ or Zν. This signal can be compared with LHC searches for electroweak superpartners through chargino–neutralino production. The reduced cross section of the sneutrino/slepton production in comparison with the one of the latter process, limits the sensitivity of the searches to small sneutrino/slepton masses. Although the resulting compressed spectrum typically evades the aforementioned searches, we show that analyses using recursive jigsaw reconstruction are sensitive to these scenarios. As a by-product, we find that the region of bino masses 110–120 GeV and sneutrino masses 120–140 GeV can give rise to a tri-lepton signal compatible with the local excess recently reported by ATLAS.
Fil: Lara, Iñaki. Universidad Autónoma de Madrid; España
Fil: Lopez, Daniel Elbio. 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. Departamento de Física; Argentina. Pontificia Universidad Católica Argentina; Argentina
Fil: Muñoz, Carlos. Universidad Autónoma de Madrid; España
Materia
LHC PHENOMENOLOGY
SUPERSYMMETRIC STANDARD MODEL
SUPERSYMMETRY PHENOMENOLOGY
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:11336/147873
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/147873
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electroweak superpartners scrutinized at the LHC in events with multi-leptonsLara, IñakiLopez, Daniel ElbioMuñoz, CarlosLHC PHENOMENOLOGYSUPERSYMMETRIC STANDARD MODELSUPERSYMMETRY PHENOMENOLOGYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the framework of the μνSSM, where the presence of R-parity violating (RPV) couplings involving right-handed neutrinos solves the μ problem and can reproduce simultaneously the neutrino data. Left sneutrinos/sleptons are pair-produced at pp collisions decaying to binos, with the latter decaying via RPV to Wℓ or Zν. This signal can be compared with LHC searches for electroweak superpartners through chargino–neutralino production. The reduced cross section of the sneutrino/slepton production in comparison with the one of the latter process, limits the sensitivity of the searches to small sneutrino/slepton masses. Although the resulting compressed spectrum typically evades the aforementioned searches, we show that analyses using recursive jigsaw reconstruction are sensitive to these scenarios. As a by-product, we find that the region of bino masses 110–120 GeV and sneutrino masses 120–140 GeV can give rise to a tri-lepton signal compatible with the local excess recently reported by ATLAS.Fil: Lara, Iñaki. Universidad Autónoma de Madrid; EspañaFil: Lopez, Daniel Elbio. 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. Departamento de Física; Argentina. Pontificia Universidad Católica Argentina; ArgentinaFil: Muñoz, Carlos. Universidad Autónoma de Madrid; EspañaElsevier2019-03-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147873Lara, Iñaki; Lopez, Daniel Elbio; Muñoz, Carlos; Electroweak superpartners scrutinized at the LHC in events with multi-leptons; Elsevier; Physics Letters B; 790; 10-3-2019; 176-1830370-2693CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269319300267?via%3Dihubinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2019.01.010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:05Zoai:ri.conicet.gov.ar:11336/147873instacron: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 14:22:05.661CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title Electroweak superpartners scrutinized at the LHC in events with multi-leptons
spellingShingle Electroweak superpartners scrutinized at the LHC in events with multi-leptons
Lara, Iñaki
LHC PHENOMENOLOGY
SUPERSYMMETRIC STANDARD MODEL
SUPERSYMMETRY PHENOMENOLOGY
title_short Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_full Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_fullStr Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_full_unstemmed Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_sort Electroweak superpartners scrutinized at the LHC in events with multi-leptons
dc.creator.none.fl_str_mv Lara, Iñaki
Lopez, Daniel Elbio
Muñoz, Carlos
author Lara, Iñaki
author_facet Lara, Iñaki
Lopez, Daniel Elbio
Muñoz, Carlos
author_role author
author2 Lopez, Daniel Elbio
Muñoz, Carlos
author2_role author
author
dc.subject.none.fl_str_mv LHC PHENOMENOLOGY
SUPERSYMMETRIC STANDARD MODEL
SUPERSYMMETRY PHENOMENOLOGY
topic LHC PHENOMENOLOGY
SUPERSYMMETRIC STANDARD MODEL
SUPERSYMMETRY PHENOMENOLOGY
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 analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the framework of the μνSSM, where the presence of R-parity violating (RPV) couplings involving right-handed neutrinos solves the μ problem and can reproduce simultaneously the neutrino data. Left sneutrinos/sleptons are pair-produced at pp collisions decaying to binos, with the latter decaying via RPV to Wℓ or Zν. This signal can be compared with LHC searches for electroweak superpartners through chargino–neutralino production. The reduced cross section of the sneutrino/slepton production in comparison with the one of the latter process, limits the sensitivity of the searches to small sneutrino/slepton masses. Although the resulting compressed spectrum typically evades the aforementioned searches, we show that analyses using recursive jigsaw reconstruction are sensitive to these scenarios. As a by-product, we find that the region of bino masses 110–120 GeV and sneutrino masses 120–140 GeV can give rise to a tri-lepton signal compatible with the local excess recently reported by ATLAS.
Fil: Lara, Iñaki. Universidad Autónoma de Madrid; España
Fil: Lopez, Daniel Elbio. 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. Departamento de Física; Argentina. Pontificia Universidad Católica Argentina; Argentina
Fil: Muñoz, Carlos. Universidad Autónoma de Madrid; España
description We analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the framework of the μνSSM, where the presence of R-parity violating (RPV) couplings involving right-handed neutrinos solves the μ problem and can reproduce simultaneously the neutrino data. Left sneutrinos/sleptons are pair-produced at pp collisions decaying to binos, with the latter decaying via RPV to Wℓ or Zν. This signal can be compared with LHC searches for electroweak superpartners through chargino–neutralino production. The reduced cross section of the sneutrino/slepton production in comparison with the one of the latter process, limits the sensitivity of the searches to small sneutrino/slepton masses. Although the resulting compressed spectrum typically evades the aforementioned searches, we show that analyses using recursive jigsaw reconstruction are sensitive to these scenarios. As a by-product, we find that the region of bino masses 110–120 GeV and sneutrino masses 120–140 GeV can give rise to a tri-lepton signal compatible with the local excess recently reported by ATLAS.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-10
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/11336/147873
Lara, Iñaki; Lopez, Daniel Elbio; Muñoz, Carlos; Electroweak superpartners scrutinized at the LHC in events with multi-leptons; Elsevier; Physics Letters B; 790; 10-3-2019; 176-183
0370-2693
CONICET Digital
CONICET
url http://hdl.handle.net/11336/147873
identifier_str_mv Lara, Iñaki; Lopez, Daniel Elbio; Muñoz, Carlos; Electroweak superpartners scrutinized at the LHC in events with multi-leptons; Elsevier; Physics Letters B; 790; 10-3-2019; 176-183
0370-2693
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://www.sciencedirect.com/science/article/pii/S0370269319300267?via%3Dihub
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2019.01.010
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
_version_ 1846082615743873024
score 13.22299

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