Applicability constraints of the equivalence theorem
In this work we study the applicability of the equivalence theorem, either for unitary models or within an effective Lagrangian approach. There are two types of limitations: the existence of a validity energy window and the use of the lowest order in the electroweak constants. For the first kind, we...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1997 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/58729 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/58729 |
| Access Level: | acceso abierto |
| Palabra clave: | 53 Chiral Perturbation-Theory Symmetry-Breaking Sector Interacting Higgs Sector Standard Model Heavy Higgs Precise Formulation Weak Interactions Lagrangians Scattering Unitarity Física (Física) 22 Física |
| Sumario: | In this work we study the applicability of the equivalence theorem, either for unitary models or within an effective Lagrangian approach. There are two types of limitations: the existence of a validity energy window and the use of the lowest order in the electroweak constants. For the first kind, we consider some methods, based on dispersion theory or the large N limit, that allow us to extend the applicability. For the second, we obtain numerical estimates of the effect of neglecting higher orders in the perturbative expansion. [S0556-2821(97)04421-4]. |
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