Publicação
Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact
| Resumo: | The complex singlet extension CxSM of the Standard Model (SM) is a simple extension of the SM with two visible Higgs bosons in the spectrum and a Dark Matter (DM) candidate. In this paper we complete the computation of the next-to-leading (NLO) electroweak (EW) corrections to on-shell and non-loop-induced Higgs decays. Our cal culations are implemented in the code EWsHDECAY which also includes the relevant QCD corrections. Performing an extensive parameter scan in the model and including all relevant theoretical and experimental single- and di-Higgs as well as DM constraints, we obtain a viable parameter sample. We fnd that current DM constraints are able to test the model in DM mass regions where collider searches are not sensitive. The relative EW corrections turn out to be large for scenarios with relatively large couplings, threshold efects or small leading-order (LO) widths. Otherwise, they are of typical EW size and can amount up to about 20–25%. The theory uncertainty derived from the change of the renormalization scheme dependence then is of a few per cent. While the NLO corrections applied in the constraints due to single- and di-Higgs searches impact the validity of specifc parameter points, the overall shape of the allowed parameter region is not yet sensitive to the EW corrections. This picture will change with further increased experimental precision in the future and necessitates precise predictions on the theory side as presented in this paper. |
|---|---|
| Autores principais: | Egle, F. |
| Outros Autores: | Muehlleitner, M.; Santos, Rui; Viana, J. |
| Assunto: | Higgs Properties Higher Order Electroweak Calculations |
| Ano: | 2023 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Científico do Instituto Politécnico de Lisboa |
| _version_ | 1868417619492601856 |
|---|---|
| author | Egle, F. |
| author2 | Muehlleitner, M. Santos, Rui Viana, J. |
| author2_role | author author author |
| author_facet | Egle, F. Muehlleitner, M. Santos, Rui Viana, J. |
| author_role | author |
| contributor_name_str_mv | RCIPL |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Egle, F.\"},{\"Person.name\":\"Muehlleitner, M.\"},{\"Person.name\":\"Santos, Rui\",\"Person.identifier.orcid\":\"0000-0002-7948-0355\"},{\"Person.name\":\"Viana, J.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RCIPL |
| datacite.creators.creator.creatorName.fl_str_mv | Egle, F. Muehlleitner, M. Santos, Rui Viana, J. |
| datacite.date.Accepted.fl_str_mv | 2023-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2024-03-26T17:00:54Z |
| datacite.date.embargoed.fl_str_mv | 2024-03-26T17:00:54Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Higgs Properties Higher Order Electroweak Calculations |
| datacite.titles.title.fl_str_mv | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| dc.contributor.none.fl_str_mv | RCIPL |
| dc.creator.none.fl_str_mv | Egle, F. Muehlleitner, M. Santos, Rui Viana, J. |
| dc.date.Accepted.fl_str_mv | 2023-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2024-03-26T17:00:54Z |
| dc.date.embargoed.fl_str_mv | 2024-03-26T17:00:54Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.21/17221 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Springer |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Higgs Properties Higher Order Electroweak Calculations |
| dc.title.fl_str_mv | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The complex singlet extension CxSM of the Standard Model (SM) is a simple extension of the SM with two visible Higgs bosons in the spectrum and a Dark Matter (DM) candidate. In this paper we complete the computation of the next-to-leading (NLO) electroweak (EW) corrections to on-shell and non-loop-induced Higgs decays. Our cal culations are implemented in the code EWsHDECAY which also includes the relevant QCD corrections. Performing an extensive parameter scan in the model and including all relevant theoretical and experimental single- and di-Higgs as well as DM constraints, we obtain a viable parameter sample. We fnd that current DM constraints are able to test the model in DM mass regions where collider searches are not sensitive. The relative EW corrections turn out to be large for scenarios with relatively large couplings, threshold efects or small leading-order (LO) widths. Otherwise, they are of typical EW size and can amount up to about 20–25%. The theory uncertainty derived from the change of the renormalization scheme dependence then is of a few per cent. While the NLO corrections applied in the constraints due to single- and di-Higgs searches impact the validity of specifc parameter points, the overall shape of the allowed parameter region is not yet sensitive to the EW corrections. This picture will change with further increased experimental precision in the future and necessitates precise predictions on the theory side as presented in this paper. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ipl.pt/bitstreams/1f5e02bb-7219-4ef3-ac09-cc88c85d2099/download |
| funding.funder.alternateName_str_mv | FCT FCT FCT FCT |
| funding.funder.identifier_str_mv | http://doi.org/10.13039/501100001871 http://doi.org/10.13039/501100001871 http://doi.org/10.13039/501100001871 http://doi.org/10.13039/501100001871 |
| funding.funder.name_str_mv | Fundação para a Ciência e a Tecnologia Fundação para a Ciência e a Tecnologia Fundação para a Ciência e a Tecnologia Fundação para a Ciência e a Tecnologia |
| funding.name_str_mv | 6817 - DCRRNI ID 6817 - DCRRNI ID 3599-PPCDT 3599-PPCDT |
| id | ripl_e4e4bb202d22dca002f16a9e136ca0b6 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.21/17221 |
| instacron_str | ipl |
| institution | Instituto Politécnico de Lisboa |
| instname_str | Instituto Politécnico de Lisboa |
| language | eng |
| network_acronym_str | ripl |
| network_name_str | Repositório Científico do Instituto Politécnico de Lisboa |
| oai_identifier_str | oai:repositorio.ipl.pt:10400.21/17221 |
| organization_str_mv | urn:organizationAcronym:ipl |
| person_str_mv | Egle, F. Muehlleitner, M. Santos, Rui Santos, Rui https://www.ciencia-id.pt/5A1A-5794-6DC2 5A1A-5794-6DC2 http://orcid.org/0000-0002-7948-0355 0000-0002-7948-0355 Viana, J. |
| publishDate | 2023 |
| publisher.none.fl_str_mv | Springer |
| reponame_str | Repositório Científico do Instituto Politécnico de Lisboa |
| repository_id_str | urn:repositoryAcronym:ripl |
| service_str_mv | urn:repositoryAcronym:ripl |
| spelling | engSpringerpt_PTThe complex singlet extension CxSM of the Standard Model (SM) is a simple extension of the SM with two visible Higgs bosons in the spectrum and a Dark Matter (DM) candidate. In this paper we complete the computation of the next-to-leading (NLO) electroweak (EW) corrections to on-shell and non-loop-induced Higgs decays. Our cal culations are implemented in the code EWsHDECAY which also includes the relevant QCD corrections. Performing an extensive parameter scan in the model and including all relevant theoretical and experimental single- and di-Higgs as well as DM constraints, we obtain a viable parameter sample. We fnd that current DM constraints are able to test the model in DM mass regions where collider searches are not sensitive. The relative EW corrections turn out to be large for scenarios with relatively large couplings, threshold efects or small leading-order (LO) widths. Otherwise, they are of typical EW size and can amount up to about 20–25%. The theory uncertainty derived from the change of the renormalization scheme dependence then is of a few per cent. While the NLO corrections applied in the constraints due to single- and di-Higgs searches impact the validity of specifc parameter points, the overall shape of the allowed parameter region is not yet sensitive to the EW corrections. This picture will change with further increased experimental precision in the future and necessitates precise predictions on the theory side as presented in this paper.application/pdfpt_PTElectroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impactEgle, F.Muehlleitner, M.PersonalSantos, RuiDSpacehttp://dspace.org/items/f972a9bd-1bdd-4a47-8d1e-94e9595eddc0DSpacehttp://dspace.org/items/f972a9bd-1bdd-4a47-8d1e-94e9595eddc0SantosRuiCiência IDhttps://www.ciencia-id.pt5A1A-5794-6DC2ORCIDhttp://orcid.org0000-0002-7948-0355Researcher IDhttps://www.researcherid.comF-1956-2010Scopus Author IDhttps://www.scopus.com10739338800Viana, J.HostingInstitutionOrganizationalRCIPLe-mailmailto:rcaap@sp.ipl.ptrcaap@sp.ipl.ptISSNIsPartOf1029-8479DOIIsPartOf10.1007/JHEP11(2023)1162024-03-26T17:00:54Z20232023-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.21/17221http://purl.org/coar/access_right/c_abf2open accessHiggs PropertiesHigher Order Electroweak Calculations2681130 bytesFundação para a Ciência e a TecnologiaCenter for Theoretical and Computational Physics6817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaCenter for Theoretical and Computational Physics6817 - DCRRNI IDCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaFrom Higgs Phenomenology to the Unification of Fundamental Interactions3599-PPCDTCrossref Funder IDhttp://doi.org/10.13039/501100001871Fundação para a Ciência e a TecnologiaStandard Model Extensions at the LHC3599-PPCDTCrossref Funder IDhttp://doi.org/10.13039/501100001871literaturehttp://purl.org/coar/resource_type/c_6501journal article2023http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ipl.pt/bitstreams/1f5e02bb-7219-4ef3-ac09-cc88c85d2099/downloadJournal of High Energy Physics139 |
| spellingShingle | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact Egle, F. Higgs Properties Higher Order Electroweak Calculations |
| status | SINGLETON |
| subject.fl_str_mv | Higgs Properties Higher Order Electroweak Calculations |
| title | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| title_full | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| title_fullStr | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| title_full_unstemmed | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| title_short | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| title_sort | Electroweak corrections to Higgs boson decays in a Complex Singlet extension of the SM and their phenomenological impact |
| topic | Higgs Properties Higher Order Electroweak Calculations |
| topic_facet | Higgs Properties Higher Order Electroweak Calculations |
| url | http://hdl.handle.net/10400.21/17221 |
| visible | 1 |