Exploring dimuon Higgs decay in an extended Scotogenic model

We investigate the dimuon Higgs decay h → μμ in the context of an extended Scotogenic model. The model introduces a singlet complex scalar in addition to the standard Scotogenic scalar doublet and singlet fermions, charged under a dark ℤ symmetry. By exploring the one-loop contributions, we show tha...

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Authors: Escribano, Pablo, Lozano, Víctor Martín, Norero, Sebastián, Vicente, Avelino
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::a1133235cb62a56abd29aed27e5002ba
Online Access:http://hdl.handle.net/10261/431201
https://api.elsevier.com/content/abstract/scopus_id/105016766956
Access Level:Open access
Keyword:Anomalous Higgs Couplings
Higgs Properties
Lepton Flavour Violation (charged)
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spelling Exploring dimuon Higgs decay in an extended Scotogenic modelEscribano, PabloLozano, Víctor MartínNorero, SebastiánVicente, AvelinoAnomalous Higgs CouplingsHiggs PropertiesLepton Flavour Violation (charged)We investigate the dimuon Higgs decay h → μμ in the context of an extended Scotogenic model. The model introduces a singlet complex scalar in addition to the standard Scotogenic scalar doublet and singlet fermions, charged under a dark ℤ symmetry. By exploring the one-loop contributions, we show that the model allows for sizable deviations in the Higgs dimuon decay rate, quantified by the quotient R = Br(h → μμ)/Br(h → μμ). Crucially, these deviations comply with experimental limits, including those on Br(μ → eγ) and Br(h → γγ). Such deviations can be tested and constrained by future precision measurements at the LHC.This work has been supported by the Spanish grants PID2023-147306NB-I00, CEX2023-001292-S (MCIU/AEI/10.13039/501100011033) and CIPROM/2021/054 (Generalitat Valenciana). V.M.L. acknowledges the financial support by Ministerio de Universidades and “European Union-Next Generation EU/PRTR” under the grant María Zambrano UP2021-044 (ZA2021-081) and Generalitat Valenciana under the grant CIPROM/2021/054.S.N. acknowledges financial support from ANID Fellowship ANID BECAS/DOCTORADO NACIONAL 21200064 and Proyecto Milenio-ANID: ICN2019_044. S.N. would also like to thank Marco Aurelio Díaz for helpful observations on the analytical behavior of Rµµ.Peer reviewedSpringerMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Generalitat ValencianaEuropean CommissionEscribano, Pablo [0000-0003-3701-0969]Lozano, Víctor Martín [0000-0002-9601-0347]Norero, Sebastián [0000-0002-2064-9494]Vicente, Avelino [0000-0002-1137-4695]202620262025info:eu-repo/semantics/articlePublisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/431201https://api.elsevier.com/content/abstract/scopus_id/105016766956reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-147306NB-I00http://dx.doi.org/10.1007/jhep09(2025)136Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::a1133235cb62a56abd29aed27e5002ba2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Exploring dimuon Higgs decay in an extended Scotogenic model
title Exploring dimuon Higgs decay in an extended Scotogenic model
spellingShingle Exploring dimuon Higgs decay in an extended Scotogenic model
Escribano, Pablo
Anomalous Higgs Couplings
Higgs Properties
Lepton Flavour Violation (charged)
title_short Exploring dimuon Higgs decay in an extended Scotogenic model
title_full Exploring dimuon Higgs decay in an extended Scotogenic model
title_fullStr Exploring dimuon Higgs decay in an extended Scotogenic model
title_full_unstemmed Exploring dimuon Higgs decay in an extended Scotogenic model
title_sort Exploring dimuon Higgs decay in an extended Scotogenic model
dc.creator.none.fl_str_mv Escribano, Pablo
Lozano, Víctor Martín
Norero, Sebastián
Vicente, Avelino
author Escribano, Pablo
author_facet Escribano, Pablo
Lozano, Víctor Martín
Norero, Sebastián
Vicente, Avelino
author_role author
author2 Lozano, Víctor Martín
Norero, Sebastián
Vicente, Avelino
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Generalitat Valenciana
European Commission
Escribano, Pablo [0000-0003-3701-0969]
Lozano, Víctor Martín [0000-0002-9601-0347]
Norero, Sebastián [0000-0002-2064-9494]
Vicente, Avelino [0000-0002-1137-4695]
dc.subject.none.fl_str_mv Anomalous Higgs Couplings
Higgs Properties
Lepton Flavour Violation (charged)
topic Anomalous Higgs Couplings
Higgs Properties
Lepton Flavour Violation (charged)
description We investigate the dimuon Higgs decay h → μμ in the context of an extended Scotogenic model. The model introduces a singlet complex scalar in addition to the standard Scotogenic scalar doublet and singlet fermions, charged under a dark ℤ symmetry. By exploring the one-loop contributions, we show that the model allows for sizable deviations in the Higgs dimuon decay rate, quantified by the quotient R = Br(h → μμ)/Br(h → μμ). Crucially, these deviations comply with experimental limits, including those on Br(μ → eγ) and Br(h → γγ). Such deviations can be tested and constrained by future precision measurements at the LHC.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/431201
https://api.elsevier.com/content/abstract/scopus_id/105016766956
url http://hdl.handle.net/10261/431201
https://api.elsevier.com/content/abstract/scopus_id/105016766956
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-147306NB-I00
http://dx.doi.org/10.1007/jhep09(2025)136
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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