dc.creatorDa Rold, Leandro
dc.creatorLamagna, Federico Agustín
dc.date2022-06
dc.date.accessioned2023-08-30T23:50:56Z
dc.date.available2023-08-30T23:50:56Z
dc.identifierhttp://hdl.handle.net/11336/187998
dc.identifierDa Rold, Leandro; Lamagna, Federico Agustín; Composite Froggatt-Nielsen model of flavor; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 105; 11; 6-2022; 1-13
dc.identifier1550-7998
dc.identifier2470-0029
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8542844
dc.descriptionA natural composite Higgs demands the presence of light resonances at the TeV scale that, in general, are in conflict with bounds from flavor and CP violation. We propose a composite model with a Froggatt-Nielsen mechanism that offers new possibilities for the origin of flavor. We analyze the interplay of partial compositeness and the horizontal U(1) symmetry in achieving the quark masses and mixing angles. We study the contributions to ΔF=2 4-fermion operators, as well as to ΔF=1 and neutron dipole operators. We find scenarios in which the contribution to left-right and right-handed operators involving the first and second generations can be suppressed; in particular, for a region of parameter space it is possible to simultaneously suppress the mixed-chirality contribution to K0-K̄0 mixing by one power of the Cabibbo angle, λC, and the dipole moments by λC2 compared with anarchic partial compositeness, possibly making the resonances accessible at LHC. 4-fermion operators of Bs-meson mixing and left-handed operators are not suppressed.
dc.descriptionFil: Da Rold, Leandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.descriptionFil: Lamagna, Federico Agustín. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.115020
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.105.115020
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectcompositeness
dc.subjectaxion
dc.subjectflavor
dc.subjecthierarchy problem
dc.subjecthttps://purl.org/becyt/ford/1.3
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleComposite Froggatt-Nielsen model of flavor
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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