Anomalous gauge couplings from composite Higgs and warped extra dimensions

dc.contributorUniversidade Federal do Rio Grande do Norte (UFRN)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorFichet, Sylvain
dc.creatorvon Gersdorff, Gero [UNESP]
dc.date2014-12-03T13:11:19Z
dc.date2014-12-03T13:11:19Z
dc.date2014-03-24
dc.date.accessioned2023-09-09T10:08:44Z
dc.date.available2023-09-09T10:08:44Z
dc.identifierhttp://dx.doi.org/10.1007/JHEP03(2014)102
dc.identifierJournal Of High Energy Physics. New York: Springer, n. 3, 36 p., 2014.
dc.identifier1029-8479
dc.identifierhttp://hdl.handle.net/11449/113013
dc.identifier10.1007/JHEP03(2014)102
dc.identifierWOS:000333802700003
dc.identifierWOS000333802700003.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8762628
dc.descriptionWe examine trilinear and quartic anomalous gauge couplings (AGCs) generated in composite Higgs models and models with warped extra dimensions. We first revisit the SU(2)(L) x U(1)(Y) effective Lagrangian and derive the charged and two-photon neutral AGCs. We derive the general perturbative contributions to the pure field-strength operators from spin 0, 1/2 resonances by means of the heat kernel method. In the composite Higgs framework, we derive the pattern of expected deviations from typical SO(N) embeddings of the light composite top partner. We then study a generic warped extra dimension framework with AdS(5) background, recasting in few parameters the features of models relevant for AGCs. We also present a detailed study of the latest bounds from electroweak and Higgs precision observables, with and without brane kinetic terms. For vanishing brane kinetic terms, we find that the S and T parameters exclude KK gauge modes of the RS custodial [non-custodial] scenario below 7.7 [14.7] TeV, for a brane Higgs and below 6.6 [8.1] TeV for a Pseudo Nambu-Goldstone Higgs, at 95% CL. These constraints can be relaxed in presence of brane kinetic terms. The leading AGCs are probing the KK gravitons and the KK modes of bulk gauge fields in parts of the parameter space. In these scenarios, the future CMS and ATLAS forward proton detectors could be sensitive to the effect of KK gravitons in the multi-TeV mass range.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBrazilian Ministry of Science, Technology and Innovation
dc.descriptionUniv Fed Rio Grande do Norte, Int Inst Phys, BR-59078400 Natal, RN, Brazil
dc.descriptionSao Paulo State Univ, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil
dc.descriptionSao Paulo State Univ, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil
dc.format36
dc.languageeng
dc.publisherSpringer
dc.relationJournal of High Energy Physics
dc.relation5.541
dc.relation1,227
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectElectromagnetic Processes and Properties
dc.subjectBeyond Standard Model
dc.subjectField Theories in Higher Dimensions
dc.subjectTechnicolor and Composite Models
dc.titleAnomalous gauge couplings from composite Higgs and warped extra dimensions
dc.typeArtigo


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