A composite pNGB leptoquark at the LHC

Autores
Alvarez, Ezequiel; Da Rold, Leandro; Juste, Aurelio; Szewc, Manuel; Schroeder, Tamara Vazquez
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The measurements of RK (∗) and RD (∗) by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the RK (∗) anomaly within this framework, we study pair production of S3∼ (3 ¯ 3) 1 / 3 at the LHC. We focus on the component S3 1/3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at s=13 TeV at the LHC. We find that sbottom searches in the bb¯+ETmiss final state best explore the region in parameter space preferred by our model and currently exclude S3 1/3 masses up to ∼1 TeV. Additional searches, considering the tτ and tμ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM tt¯ tt¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + ET miss, where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.
The measurements of R (∗) K and R (∗) D by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the R (∗) K anomaly within this framework, we study pair production of S3 ∼ (¯3, 3)1/3 at the LHC. We focus on the component S 1/3 3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at √ s = 13 TeV at the LHC. We find that sbottom searches in the b ¯b + Emiss T final state best explore the region in parameter space preferred by our model and currently exclude S 1/3 3 masses up to ∼1 TeV. Additional searches, considering the tτ and tµ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM ttt¯ t¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + Emiss T , where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.
Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Rold, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Juste, Aurelio. Universitat Autònoma de Barcelona; España. Institució Catalana de Recerca i Estudis Avancats; España
Fil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schroeder, Tamara Vazquez. Cern - European Organization for Nuclear Research; Suiza
Materia
BEYOND STANDARD MODEL
EXOTICS
HADRON-HADRON SCATTERING (EXPERIMENTS)
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:11336/125111

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network_name_str CONICET Digital (CONICET)
spelling A composite pNGB leptoquark at the LHCAlvarez, EzequielDa Rold, LeandroJuste, AurelioSzewc, ManuelSchroeder, Tamara VazquezBEYOND STANDARD MODELEXOTICSHADRON-HADRON SCATTERING (EXPERIMENTS)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The measurements of RK (∗) and RD (∗) by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the RK (∗) anomaly within this framework, we study pair production of S3∼ (3 ¯ 3) 1 / 3 at the LHC. We focus on the component S3 1/3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at s=13 TeV at the LHC. We find that sbottom searches in the bb¯+ETmiss final state best explore the region in parameter space preferred by our model and currently exclude S3 1/3 masses up to ∼1 TeV. Additional searches, considering the tτ and tμ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM tt¯ tt¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + ET miss, where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.The measurements of R (∗) K and R (∗) D by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the R (∗) K anomaly within this framework, we study pair production of S3 ∼ (¯3, 3)1/3 at the LHC. We focus on the component S 1/3 3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at √ s = 13 TeV at the LHC. We find that sbottom searches in the b ¯b + Emiss T final state best explore the region in parameter space preferred by our model and currently exclude S 1/3 3 masses up to ∼1 TeV. Additional searches, considering the tτ and tµ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM ttt¯ t¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + Emiss T , where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Da Rold, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Juste, Aurelio. Universitat Autònoma de Barcelona; España. Institució Catalana de Recerca i Estudis Avancats; EspañaFil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Schroeder, Tamara Vazquez. Cern - European Organization for Nuclear Research; SuizaSpringer2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125111Alvarez, Ezequiel; Da Rold, Leandro; Juste, Aurelio; Szewc, Manuel; Schroeder, Tamara Vazquez; A composite pNGB leptoquark at the LHC; Springer; Journal of High Energy Physics; 2018; 27; 12-2018; 1-191029-84791126-6708CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1808.02063info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP12(2018)027info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP12%282018%29027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:58Zoai:ri.conicet.gov.ar:11336/125111instacron: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 09:45:59.067CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A composite pNGB leptoquark at the LHC
title A composite pNGB leptoquark at the LHC
spellingShingle A composite pNGB leptoquark at the LHC
Alvarez, Ezequiel
BEYOND STANDARD MODEL
EXOTICS
HADRON-HADRON SCATTERING (EXPERIMENTS)
title_short A composite pNGB leptoquark at the LHC
title_full A composite pNGB leptoquark at the LHC
title_fullStr A composite pNGB leptoquark at the LHC
title_full_unstemmed A composite pNGB leptoquark at the LHC
title_sort A composite pNGB leptoquark at the LHC
dc.creator.none.fl_str_mv Alvarez, Ezequiel
Da Rold, Leandro
Juste, Aurelio
Szewc, Manuel
Schroeder, Tamara Vazquez
author Alvarez, Ezequiel
author_facet Alvarez, Ezequiel
Da Rold, Leandro
Juste, Aurelio
Szewc, Manuel
Schroeder, Tamara Vazquez
author_role author
author2 Da Rold, Leandro
Juste, Aurelio
Szewc, Manuel
Schroeder, Tamara Vazquez
author2_role author
author
author
author
dc.subject.none.fl_str_mv BEYOND STANDARD MODEL
EXOTICS
HADRON-HADRON SCATTERING (EXPERIMENTS)
topic BEYOND STANDARD MODEL
EXOTICS
HADRON-HADRON SCATTERING (EXPERIMENTS)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The measurements of RK (∗) and RD (∗) by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the RK (∗) anomaly within this framework, we study pair production of S3∼ (3 ¯ 3) 1 / 3 at the LHC. We focus on the component S3 1/3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at s=13 TeV at the LHC. We find that sbottom searches in the bb¯+ETmiss final state best explore the region in parameter space preferred by our model and currently exclude S3 1/3 masses up to ∼1 TeV. Additional searches, considering the tτ and tμ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM tt¯ tt¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + ET miss, where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.
The measurements of R (∗) K and R (∗) D by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the R (∗) K anomaly within this framework, we study pair production of S3 ∼ (¯3, 3)1/3 at the LHC. We focus on the component S 1/3 3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at √ s = 13 TeV at the LHC. We find that sbottom searches in the b ¯b + Emiss T final state best explore the region in parameter space preferred by our model and currently exclude S 1/3 3 masses up to ∼1 TeV. Additional searches, considering the tτ and tµ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM ttt¯ t¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + Emiss T , where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.
Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Rold, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Juste, Aurelio. Universitat Autònoma de Barcelona; España. Institució Catalana de Recerca i Estudis Avancats; España
Fil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schroeder, Tamara Vazquez. Cern - European Organization for Nuclear Research; Suiza
description The measurements of RK (∗) and RD (∗) by BaBar, Belle and the LHCb collaborations could be showing a hint of lepton flavor universality violation that can be accommodated by the presence of suitable leptoquarks at the TeV scale. We consider an effective description, with leptoquarks arising as composite pseudo Nambu-Goldstone bosons, as well as anarchic partial compositeness of the SM fermions. Considering the RK (∗) anomaly within this framework, we study pair production of S3∼ (3 ¯ 3) 1 / 3 at the LHC. We focus on the component S3 1/3 of the triplet, which decays predominantly into tτ and bν, and study the bounds from existing searches at s=13 TeV at the LHC. We find that sbottom searches in the bb¯+ETmiss final state best explore the region in parameter space preferred by our model and currently exclude S3 1/3 masses up to ∼1 TeV. Additional searches, considering the tτ and tμ decay modes, are required to probe the full physical parameter space. In this paper we also recast existing studies on direct leptoquark searches in the tτ tτ channel and SM tt¯ tt¯ searches, and obtain the regions in parameter space currently excluded. Practically the whole physical parameter space is currently excluded for masses up to ∼0.8 TeV, which could be extended up to ∼1 TeV with the full Run 3 dataset. We conclude that pair production searches for this leptoquark can benefit from considering the final state tτ b + ET miss, where the largest branching ratio is expected. We appraise that future explorations of leptoquarks explaining the B-anomalies with masses beyond the TeV should also consider single and non-resonant production in order to extend the mass reach.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
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/11336/125111
Alvarez, Ezequiel; Da Rold, Leandro; Juste, Aurelio; Szewc, Manuel; Schroeder, Tamara Vazquez; A composite pNGB leptoquark at the LHC; Springer; Journal of High Energy Physics; 2018; 27; 12-2018; 1-19
1029-8479
1126-6708
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125111
identifier_str_mv Alvarez, Ezequiel; Da Rold, Leandro; Juste, Aurelio; Szewc, Manuel; Schroeder, Tamara Vazquez; A composite pNGB leptoquark at the LHC; Springer; Journal of High Energy Physics; 2018; 27; 12-2018; 1-19
1029-8479
1126-6708
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/1808.02063
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP12(2018)027
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP12%282018%29027
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dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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