The excitation of the global symmetry-breaking vacuum in composite Higgs models

dc.contributor.authorFichet, Sylvain [UNESP]
dc.contributor.authorvon Gersdorff, Gero
dc.contributor.authorPonton, Eduardo [UNESP]
dc.contributor.authorRosenfeld, Rogerio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionPontificia Univ Catolica Rio de Janeiro
dc.date.accessioned2018-11-26T17:15:40Z
dc.date.available2018-11-26T17:15:40Z
dc.date.issued2016-09-27
dc.description.abstractWe consider scenarios of Higgs compositeness where the Higgs doublet arises as a pseudo-Nambu Goldstone boson. Our focus is the physical scalar (radial) excitation associated with the global symmetry breaking vacuum, which we call the global Higgs. For the minimal case of a SO(5)/SO(4) coset, the couplings of the global Higgs to Standard Model (SM) particles are fully determined by group theoretical factors and two decay constants. The global Higgs also couples to the composite resonances of the theory, inducing an interaction with the SM gauge bosons at one-loop. We thoroughly analyze representative fermionic sectors, considering a global Higgs both in the 5 and 1 4 representations of SO(5) and taking into account the renormalization group evolution of couplings in the composite sector. We derive the one-loop effective couplings and all decays of the global Higgs, showing that its decay width over mass can range from O(10(-3)) to O (1). Because of the multiplicity of the resonances, the coupling of the global Higgs to gluons is sizeable, potentially opening a new window into composite models at the LHC.en
dc.description.affiliationUniv Estadual Paulista, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, Sao Paulo, Brazil
dc.description.affiliationPontificia Univ Catolica Rio de Janeiro, Dept Fis, Rio De Janeiro, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 2011/11973
dc.description.sponsorshipIdFAPESP: 2014/21477-2
dc.format.extent29
dc.identifierhttp://dx.doi.org/10.1007/JHEP09(2016)158
dc.identifier.citationJournal Of High Energy Physics. New York: Springer, n. 9, 29 p., 2016.
dc.identifier.doi10.1007/JHEP09(2016)158
dc.identifier.fileWOS000391735900005.pdf
dc.identifier.issn1029-8479
dc.identifier.urihttp://hdl.handle.net/11449/162337
dc.identifier.wosWOS:000391735900005
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal Of High Energy Physics
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectTechnicolor and Composite Models
dc.subjectGlobal Symmetries
dc.titleThe excitation of the global symmetry-breaking vacuum in composite Higgs modelsen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer

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