A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.

The apparent finding of a 125 GeV light Higgs boson would close the minimal Standard Model (SM), that is weakly interacting. This is an exceptional feature not generally true if new physics exists beyond the mass gap found at the LHC up to 700 GeV. Any such new physics would induce departures from t...

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Detalles Bibliográficos
Autores: Delgado López, Rafael, Dobado González, Antonio, Llanes Estrada, Felipe José
Tipo de recurso: capítulo de libro
Fecha de publicación:2016
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/24871
Acceso en línea:https://hdl.handle.net/20.500.14352/24871
Access Level:acceso abierto
Palabra clave:53
Electroweak sector
Higgs boson
Strong interactions
Unitarization
Equivalence theorem.
Física (Física)
22 Física
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oai_identifier_str oai:docta.ucm.es:20.500.14352/24871
network_acronym_str ES
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repository_id_str
spelling A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.Delgado López, RafaelDobado González, AntonioLlanes Estrada, Felipe José53Electroweak sectorHiggs bosonStrong interactionsUnitarizationEquivalence theorem.Física (Física)22 FísicaThe apparent finding of a 125 GeV light Higgs boson would close the minimal Standard Model (SM), that is weakly interacting. This is an exceptional feature not generally true if new physics exists beyond the mass gap found at the LHC up to 700 GeV. Any such new physics would induce departures from the SM in the low-energy dynamics for the minimal electroweak symmetry-breaking sector (EWSBS), with three Goldstone bosons (related to longitudinal W and Z bosons) and one light Higgs-like scalar. With no new particle content, for most of the parameter space, the scattering is actually strongly interacting (with the SM a remarkable exception). We therefore explore various unitarization methods, that have already be applied to the tree-level W_L W_L amplitude; we find and study a natural second sigma-like scalar pole there. Of note is its appearance due to either elastic or coupled-channel dynamics, especially since the later is largely unconstrained by current LHC data and could be large.American Institute of Physics (AIP)Universidad Complutense de Madrid20162016-01-0120162016-01-01book parthttp://purl.org/coar/resource_type/c_3248info:eu-repo/semantics/bookPartapplication/pdfhttps://hdl.handle.net/20.500.14352/24871reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/248712026-06-02T12:44:21Z
dc.title.none.fl_str_mv A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
title A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
spellingShingle A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
Delgado López, Rafael
53
Electroweak sector
Higgs boson
Strong interactions
Unitarization
Equivalence theorem.
Física (Física)
22 Física
title_short A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
title_full A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
title_fullStr A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
title_full_unstemmed A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
title_sort A Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar.
dc.creator.none.fl_str_mv Delgado López, Rafael
Dobado González, Antonio
Llanes Estrada, Felipe José
author Delgado López, Rafael
author_facet Delgado López, Rafael
Dobado González, Antonio
Llanes Estrada, Felipe José
author_role author
author2 Dobado González, Antonio
Llanes Estrada, Felipe José
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 53
Electroweak sector
Higgs boson
Strong interactions
Unitarization
Equivalence theorem.
Física (Física)
22 Física
topic 53
Electroweak sector
Higgs boson
Strong interactions
Unitarization
Equivalence theorem.
Física (Física)
22 Física
description The apparent finding of a 125 GeV light Higgs boson would close the minimal Standard Model (SM), that is weakly interacting. This is an exceptional feature not generally true if new physics exists beyond the mass gap found at the LHC up to 700 GeV. Any such new physics would induce departures from the SM in the low-energy dynamics for the minimal electroweak symmetry-breaking sector (EWSBS), with three Goldstone bosons (related to longitudinal W and Z bosons) and one light Higgs-like scalar. With no new particle content, for most of the parameter space, the scattering is actually strongly interacting (with the SM a remarkable exception). We therefore explore various unitarization methods, that have already be applied to the tree-level W_L W_L amplitude; we find and study a natural second sigma-like scalar pole there. Of note is its appearance due to either elastic or coupled-channel dynamics, especially since the later is largely unconstrained by current LHC data and could be large.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01
2016
2016-01-01
dc.type.none.fl_str_mv book part
http://purl.org/coar/resource_type/c_3248
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/24871
url https://hdl.handle.net/20.500.14352/24871
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics (AIP)
publisher.none.fl_str_mv American Institute of Physics (AIP)
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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