Explaining the Higgs decays at the LHC with an extended electroweak model
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/35895 http://dx.doi.org/10.1140/epjc/s10052-013-2288-y |
Resumo: | We show that the observed enhancement in the diphoton decays of the recently discovered new boson at the LHC, which we assume to be a Higgs boson, can be naturally explained by a new doublet of charged vector bosons from extended electroweak models with SU(3)(C) circle times SU(3)(L) circle times U(1)(X) symmetry. These models are also rather economical in explaining the measured signal strengths, within the current experimental errors, demanding fewer assumptions and less parameters tuning. Our results show a good agreement between the theoretical expected sensitivity to a 126-125 GeV Higgs boson, and the experimental significance observed in the diphoton channel at the 8 TeV LHC. Effects of an invisible decay channel for the Higgs boson are also taken into account, in order to anticipate a possible confirmation of deficits in the branching ratios into ZZ*, WW*, bottom quarks, and tau leptons. |
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Alves, Alexandre [UNIFESP]Ramirez Barreto, E.Dias, A. G.Pires, C. A. de S.Queiroz, Farinaldo S.Rodrigues da Silva, P. S.Universidade Federal de São Paulo (UNIFESP)Universidade Federal do ABC (UFABC)Univ Fed ParaibaFermilab Natl Accelerator Lab2016-01-24T14:31:09Z2016-01-24T14:31:09Z2013-02-01European Physical Journal C. New York: Springer, v. 73, n. 2, 9 p., 2013.1434-6044http://repositorio.unifesp.br/handle/11600/35895http://dx.doi.org/10.1140/epjc/s10052-013-2288-yWOS000318289600003.pdf10.1140/epjc/s10052-013-2288-yWOS:000318289600003We show that the observed enhancement in the diphoton decays of the recently discovered new boson at the LHC, which we assume to be a Higgs boson, can be naturally explained by a new doublet of charged vector bosons from extended electroweak models with SU(3)(C) circle times SU(3)(L) circle times U(1)(X) symmetry. These models are also rather economical in explaining the measured signal strengths, within the current experimental errors, demanding fewer assumptions and less parameters tuning. Our results show a good agreement between the theoretical expected sensitivity to a 126-125 GeV Higgs boson, and the experimental significance observed in the diphoton channel at the 8 TeV LHC. Effects of an invisible decay channel for the Higgs boson are also taken into account, in order to anticipate a possible confirmation of deficits in the branching ratios into ZZ*, WW*, bottom quarks, and tau leptons.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Federal de São Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, BrazilUniv Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP, BrazilUniv Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, BrazilFermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USAUniversidade Federal de São Paulo, Dept Ciencias Exatas & Terra, BR-09972270 Diadema, SP, BrazilWeb of Science9engSpringerEuropean Physical Journal Chttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0info:eu-repo/semantics/openAccessExplaining the Higgs decays at the LHC with an extended electroweak modelinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlereponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000318289600003.pdfapplication/pdf675579${dspace.ui.url}/bitstream/11600/35895/1/WOS000318289600003.pdf655384467b3fc1ed00253a7fe0a568feMD51open accessTEXTWOS000318289600003.pdf.txtWOS000318289600003.pdf.txtExtracted texttext/plain38606${dspace.ui.url}/bitstream/11600/35895/9/WOS000318289600003.pdf.txt6ffcede3655e606bd1afecf5e7517ed4MD59open accessTHUMBNAILWOS000318289600003.pdf.jpgWOS000318289600003.pdf.jpgIM Thumbnailimage/jpeg6936${dspace.ui.url}/bitstream/11600/35895/11/WOS000318289600003.pdf.jpg49e6aa1c1e647e79c624af4a456506b6MD511open access11600/358952023-06-05 19:22:54.736open accessoai:repositorio.unifesp.br:11600/35895Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:22:54Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Explaining the Higgs decays at the LHC with an extended electroweak model |
title |
Explaining the Higgs decays at the LHC with an extended electroweak model |
spellingShingle |
Explaining the Higgs decays at the LHC with an extended electroweak model Alves, Alexandre [UNIFESP] |
title_short |
Explaining the Higgs decays at the LHC with an extended electroweak model |
title_full |
Explaining the Higgs decays at the LHC with an extended electroweak model |
title_fullStr |
Explaining the Higgs decays at the LHC with an extended electroweak model |
title_full_unstemmed |
Explaining the Higgs decays at the LHC with an extended electroweak model |
title_sort |
Explaining the Higgs decays at the LHC with an extended electroweak model |
author |
Alves, Alexandre [UNIFESP] |
author_facet |
Alves, Alexandre [UNIFESP] Ramirez Barreto, E. Dias, A. G. Pires, C. A. de S. Queiroz, Farinaldo S. Rodrigues da Silva, P. S. |
author_role |
author |
author2 |
Ramirez Barreto, E. Dias, A. G. Pires, C. A. de S. Queiroz, Farinaldo S. Rodrigues da Silva, P. S. |
author2_role |
author author author author author |
dc.contributor.institution.none.fl_str_mv |
Universidade Federal de São Paulo (UNIFESP) Universidade Federal do ABC (UFABC) Univ Fed Paraiba Fermilab Natl Accelerator Lab |
dc.contributor.author.fl_str_mv |
Alves, Alexandre [UNIFESP] Ramirez Barreto, E. Dias, A. G. Pires, C. A. de S. Queiroz, Farinaldo S. Rodrigues da Silva, P. S. |
description |
We show that the observed enhancement in the diphoton decays of the recently discovered new boson at the LHC, which we assume to be a Higgs boson, can be naturally explained by a new doublet of charged vector bosons from extended electroweak models with SU(3)(C) circle times SU(3)(L) circle times U(1)(X) symmetry. These models are also rather economical in explaining the measured signal strengths, within the current experimental errors, demanding fewer assumptions and less parameters tuning. Our results show a good agreement between the theoretical expected sensitivity to a 126-125 GeV Higgs boson, and the experimental significance observed in the diphoton channel at the 8 TeV LHC. Effects of an invisible decay channel for the Higgs boson are also taken into account, in order to anticipate a possible confirmation of deficits in the branching ratios into ZZ*, WW*, bottom quarks, and tau leptons. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-02-01 |
dc.date.accessioned.fl_str_mv |
2016-01-24T14:31:09Z |
dc.date.available.fl_str_mv |
2016-01-24T14:31:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
European Physical Journal C. New York: Springer, v. 73, n. 2, 9 p., 2013. |
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http://repositorio.unifesp.br/handle/11600/35895 http://dx.doi.org/10.1140/epjc/s10052-013-2288-y |
dc.identifier.issn.none.fl_str_mv |
1434-6044 |
dc.identifier.file.none.fl_str_mv |
WOS000318289600003.pdf |
dc.identifier.doi.none.fl_str_mv |
10.1140/epjc/s10052-013-2288-y |
dc.identifier.wos.none.fl_str_mv |
WOS:000318289600003 |
identifier_str_mv |
European Physical Journal C. New York: Springer, v. 73, n. 2, 9 p., 2013. 1434-6044 WOS000318289600003.pdf 10.1140/epjc/s10052-013-2288-y WOS:000318289600003 |
url |
http://repositorio.unifesp.br/handle/11600/35895 http://dx.doi.org/10.1140/epjc/s10052-013-2288-y |
dc.language.iso.fl_str_mv |
eng |
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eng |
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European Physical Journal C |
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http://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0 info:eu-repo/semantics/openAccess |
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Springer |
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Springer |
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