Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions

Autores
Da Rold, Leandro; Epele, Manuel; Medina, Anibal Damian; Mileo, Nicolás Ismael; Szynkman, Alejandro Andrés
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study di-Higgs production via gluon fusion at the high luminosity LHC in the presence of new physics, focusing on the b ¯bγγ final states. Taking a minimal set of three scalar leptoquarks (LQs) with cubic and quartic interactions with the Higgs and choosing four benchmark points with a light LQ, we perform a detailed analysis of differential distributions of the di-Higgs production cross section, studying the imprints of the new physics states running in the loops. Simulating the signal and main backgrounds, we study the influence of the new physics in differential distributions such as the invariant mass of the subsystems of final particles, the transverse momentum, and angular variables, finding in particular a resonance peak associated with the light LQ. It turns out that the angular separation of the photons, which is correlated with the resonance LQ peak, is a very sensitive observable that helps in discriminating the new physics signal from the Standard Model background. We find that for two of our benchmarks discovery could be reached with 3 ab−1 , whereas exclusion limits at 95% C.L. could be claimed with 0.60–0.75 ab−1 . For the other two benchmarks that have heavier LQ masses significances of order 2σ are possible for 3 ab−1 . A similar analysis could be applied to other loop-enhanced models.
Fil: Da Rold, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Epele, Manuel. 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
Fil: Medina, Anibal Damian. 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
Fil: Mileo, Nicolás Ismael. 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
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
Higgs
Anomalous couplings
BSM
Leptoquarks
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:11336/242276

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network_name_str CONICET Digital (CONICET)
spelling Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributionsDa Rold, LeandroEpele, ManuelMedina, Anibal DamianMileo, Nicolás IsmaelSzynkman, Alejandro AndrésHiggsAnomalous couplingsBSMLeptoquarkshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study di-Higgs production via gluon fusion at the high luminosity LHC in the presence of new physics, focusing on the b ¯bγγ final states. Taking a minimal set of three scalar leptoquarks (LQs) with cubic and quartic interactions with the Higgs and choosing four benchmark points with a light LQ, we perform a detailed analysis of differential distributions of the di-Higgs production cross section, studying the imprints of the new physics states running in the loops. Simulating the signal and main backgrounds, we study the influence of the new physics in differential distributions such as the invariant mass of the subsystems of final particles, the transverse momentum, and angular variables, finding in particular a resonance peak associated with the light LQ. It turns out that the angular separation of the photons, which is correlated with the resonance LQ peak, is a very sensitive observable that helps in discriminating the new physics signal from the Standard Model background. We find that for two of our benchmarks discovery could be reached with 3 ab−1 , whereas exclusion limits at 95% C.L. could be claimed with 0.60–0.75 ab−1 . For the other two benchmarks that have heavier LQ masses significances of order 2σ are possible for 3 ab−1 . A similar analysis could be applied to other loop-enhanced models.Fil: Da Rold, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Epele, Manuel. 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; ArgentinaFil: Medina, Anibal Damian. 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; ArgentinaFil: Mileo, Nicolás Ismael. 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; ArgentinaFil: 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; ArgentinaSpringer2024-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242276Da Rold, Leandro; Epele, Manuel; Medina, Anibal Damian; Mileo, Nicolás Ismael; Szynkman, Alejandro Andrés; Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions; Springer; Journal of High Energy Physics; 2024; 5; 5-2024; 1-221029-8479CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/JHEP05(2024)072info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP05(2024)072info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:03Zoai:ri.conicet.gov.ar:11336/242276instacron: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 10:10:03.486CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
title Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
spellingShingle Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
Da Rold, Leandro
Higgs
Anomalous couplings
BSM
Leptoquarks
title_short Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
title_full Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
title_fullStr Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
title_full_unstemmed Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
title_sort Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions
dc.creator.none.fl_str_mv Da Rold, Leandro
Epele, Manuel
Medina, Anibal Damian
Mileo, Nicolás Ismael
Szynkman, Alejandro Andrés
author Da Rold, Leandro
author_facet Da Rold, Leandro
Epele, Manuel
Medina, Anibal Damian
Mileo, Nicolás Ismael
Szynkman, Alejandro Andrés
author_role author
author2 Epele, Manuel
Medina, Anibal Damian
Mileo, Nicolás Ismael
Szynkman, Alejandro Andrés
author2_role author
author
author
author
dc.subject.none.fl_str_mv Higgs
Anomalous couplings
BSM
Leptoquarks
topic Higgs
Anomalous couplings
BSM
Leptoquarks
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 di-Higgs production via gluon fusion at the high luminosity LHC in the presence of new physics, focusing on the b ¯bγγ final states. Taking a minimal set of three scalar leptoquarks (LQs) with cubic and quartic interactions with the Higgs and choosing four benchmark points with a light LQ, we perform a detailed analysis of differential distributions of the di-Higgs production cross section, studying the imprints of the new physics states running in the loops. Simulating the signal and main backgrounds, we study the influence of the new physics in differential distributions such as the invariant mass of the subsystems of final particles, the transverse momentum, and angular variables, finding in particular a resonance peak associated with the light LQ. It turns out that the angular separation of the photons, which is correlated with the resonance LQ peak, is a very sensitive observable that helps in discriminating the new physics signal from the Standard Model background. We find that for two of our benchmarks discovery could be reached with 3 ab−1 , whereas exclusion limits at 95% C.L. could be claimed with 0.60–0.75 ab−1 . For the other two benchmarks that have heavier LQ masses significances of order 2σ are possible for 3 ab−1 . A similar analysis could be applied to other loop-enhanced models.
Fil: Da Rold, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Epele, Manuel. 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
Fil: Medina, Anibal Damian. 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
Fil: Mileo, Nicolás Ismael. 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
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 di-Higgs production via gluon fusion at the high luminosity LHC in the presence of new physics, focusing on the b ¯bγγ final states. Taking a minimal set of three scalar leptoquarks (LQs) with cubic and quartic interactions with the Higgs and choosing four benchmark points with a light LQ, we perform a detailed analysis of differential distributions of the di-Higgs production cross section, studying the imprints of the new physics states running in the loops. Simulating the signal and main backgrounds, we study the influence of the new physics in differential distributions such as the invariant mass of the subsystems of final particles, the transverse momentum, and angular variables, finding in particular a resonance peak associated with the light LQ. It turns out that the angular separation of the photons, which is correlated with the resonance LQ peak, is a very sensitive observable that helps in discriminating the new physics signal from the Standard Model background. We find that for two of our benchmarks discovery could be reached with 3 ab−1 , whereas exclusion limits at 95% C.L. could be claimed with 0.60–0.75 ab−1 . For the other two benchmarks that have heavier LQ masses significances of order 2σ are possible for 3 ab−1 . A similar analysis could be applied to other loop-enhanced models.
publishDate 2024
dc.date.none.fl_str_mv 2024-05
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/11336/242276
Da Rold, Leandro; Epele, Manuel; Medina, Anibal Damian; Mileo, Nicolás Ismael; Szynkman, Alejandro Andrés; Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions; Springer; Journal of High Energy Physics; 2024; 5; 5-2024; 1-22
1029-8479
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242276
identifier_str_mv Da Rold, Leandro; Epele, Manuel; Medina, Anibal Damian; Mileo, Nicolás Ismael; Szynkman, Alejandro Andrés; Double Higgs production at the HL-LHC: probing a loop-enhanced model with kinematical distributions; Springer; Journal of High Energy Physics; 2024; 5; 5-2024; 1-22
1029-8479
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://link.springer.com/article/10.1007/JHEP05(2024)072
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP05(2024)072
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
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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