Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM

We investigate di-Higgs production at the (HL-) LHC and possible high-energy future e(+)e(-) colliders within the real Higgs singlet extension of the Standard Model (SM), the RxSM. This model has two CP-even Higgs bosons, h and H, for which we assume m(h) sim 125GeV < m(H) . We analyse the effect...

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Autores: Braathen, J, Heinemeyer, Sven, Arnay, AP, Schaeidt, AV
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::a6058b349be2fc87e1582767bdb202d3
Acceso en línea:http://hdl.handle.net/10261/428769
Access Level:acceso abierto
Palabra clave:ELECTROWEAK PHASE-TRANSITION
BOSON COUPLINGS
STANDARD MODEL
RADIATIVE-CORRECTIONS
2-LOOP CORRECTIONS
EXCLUSION BOUNDS
SELF-COUPLINGS
PHYSICS
SECTORS
TEVATRON
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spelling Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSMBraathen, JHeinemeyer, SvenArnay, APSchaeidt, AVELECTROWEAK PHASE-TRANSITIONBOSON COUPLINGSSTANDARD MODELRADIATIVE-CORRECTIONS2-LOOP CORRECTIONSEXCLUSION BOUNDSSELF-COUPLINGSPHYSICSSECTORSTEVATRONWe investigate di-Higgs production at the (HL-) LHC and possible high-energy future e(+)e(-) colliders within the real Higgs singlet extension of the Standard Model (SM), the RxSM. This model has two CP-even Higgs bosons, h and H, for which we assume m(h) sim 125GeV < m(H) . We analyse the effect of one-loop corrections to the two trilinear scalar couplings relevant for di-Higgs production, lambda(hhH) and Ahhh, by performing an extensive parameter scan within the RxSM. We find that the one-loop corrections have a strong impact on the total production cross-sections, as well as on the differential cross-sections with respect to the invariant di-Higgs mass, m(hh). We evaluate the sensitivity of the HL-LHC and a high-energy e(+)e(-) collider with root s = 1 TeV, the ILC1000, to probe BSM physics effects in these processes. We demonstrate that the RxSM can be distinguished from the SM for large parts of the sampled parameter space. The resonant H structure in the m(hh) distribution, on the other hand, can be observed only if the corresponding couplings, in particular lambda(hhH), are sufficiently large. Here the ILC1000 yields a substantially better sensitivity than the HL-LHC.We thank Margarete Mühlleitner for communications and for implementing the RxSM in HPAIR. We are also grateful to Carlos Pulido, Michael Ramsey-Musolf and Rui Santos for interesting discussions. J.B. and A.V.S are supported by the DFG Emmy Noether Grant No. BR 6995/1-1. J.B. and A.V.S. acknowledge support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC 2121 “Quantum Universe” – 390833306. This work has been partially funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – 491245950. The work of S.H. has received financial support from the grant PID2019-110058GB-C21 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”, and in part by the grant IFT Centro de Excelencia Severo Ochoa CEX2020-001007-S funded by MCIN/AEI/10.13039/501100011033. S.H. also acknowledges support from Grant PID2022-142545NB-C21 funded by MCIN/AEI/10.13039/501100011033/ FEDER, UE.Peer reviewedMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/428769reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésEUROPEAN PHYSICAL JOURNAL Chttps://link.springer.com/article/10.1140/epjc/s10052-025-14770-1Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::a6058b349be2fc87e1582767bdb202d32026-05-22T06:33:51Z
dc.title.none.fl_str_mv Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
title Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
spellingShingle Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
Braathen, J
ELECTROWEAK PHASE-TRANSITION
BOSON COUPLINGS
STANDARD MODEL
RADIATIVE-CORRECTIONS
2-LOOP CORRECTIONS
EXCLUSION BOUNDS
SELF-COUPLINGS
PHYSICS
SECTORS
TEVATRON
title_short Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
title_full Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
title_fullStr Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
title_full_unstemmed Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
title_sort Impact of one-loop corrections to trilinear scalar couplings on di-Higgs production in the RxSM
dc.creator.none.fl_str_mv Braathen, J
Heinemeyer, Sven
Arnay, AP
Schaeidt, AV
author Braathen, J
author_facet Braathen, J
Heinemeyer, Sven
Arnay, AP
Schaeidt, AV
author_role author
author2 Heinemeyer, Sven
Arnay, AP
Schaeidt, AV
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv ELECTROWEAK PHASE-TRANSITION
BOSON COUPLINGS
STANDARD MODEL
RADIATIVE-CORRECTIONS
2-LOOP CORRECTIONS
EXCLUSION BOUNDS
SELF-COUPLINGS
PHYSICS
SECTORS
TEVATRON
topic ELECTROWEAK PHASE-TRANSITION
BOSON COUPLINGS
STANDARD MODEL
RADIATIVE-CORRECTIONS
2-LOOP CORRECTIONS
EXCLUSION BOUNDS
SELF-COUPLINGS
PHYSICS
SECTORS
TEVATRON
description We investigate di-Higgs production at the (HL-) LHC and possible high-energy future e(+)e(-) colliders within the real Higgs singlet extension of the Standard Model (SM), the RxSM. This model has two CP-even Higgs bosons, h and H, for which we assume m(h) sim 125GeV < m(H) . We analyse the effect of one-loop corrections to the two trilinear scalar couplings relevant for di-Higgs production, lambda(hhH) and Ahhh, by performing an extensive parameter scan within the RxSM. We find that the one-loop corrections have a strong impact on the total production cross-sections, as well as on the differential cross-sections with respect to the invariant di-Higgs mass, m(hh). We evaluate the sensitivity of the HL-LHC and a high-energy e(+)e(-) collider with root s = 1 TeV, the ILC1000, to probe BSM physics effects in these processes. We demonstrate that the RxSM can be distinguished from the SM for large parts of the sampled parameter space. The resonant H structure in the m(hh) distribution, on the other hand, can be observed only if the corresponding couplings, in particular lambda(hhH), are sufficiently large. Here the ILC1000 yields a substantially better sensitivity than the HL-LHC.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/428769
url http://hdl.handle.net/10261/428769
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv EUROPEAN PHYSICAL JOURNAL C
https://link.springer.com/article/10.1140/epjc/s10052-025-14770-1
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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