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Applicability constraints of the equivalence theorem

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dc.contributor.authorDobado González, Antonio
dc.contributor.authorPeláez Sagredo, José Ramón
dc.contributor.authorUrdiales, M.T.
dc.date.accessioned2023-06-20T18:50:04Z
dc.date.available2023-06-20T18:50:04Z
dc.date.issued1997-12-01
dc.description© 1997 The American Physical Society. J.R.P would like to thank the Theory Group at Berkeley for their kind hospitality, the Jaime del Amo fundation for financial support, as well as M.J. Herrero and H.J. He for helpful discussions on the subject. This work has been partially supported by the Ministerio de Educación y Ciencia (Spain) Grant No. CICYT AEN93-0776).
dc.description.abstractIn 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].
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Educación y Ciencia (Spain)
dc.description.sponsorshipCICYT
dc.description.sponsorshipJaime del Amo fundation
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/22738
dc.identifier.doi10.1103/PhysRevD.56.7133
dc.identifier.issn0556-2821
dc.identifier.officialurlhttp://link.springer.com/article/10.1007%2Fs100529800993?LI=true
dc.identifier.relatedurlhttp://link.springer.com/
dc.identifier.relatedurlhttp://arxiv.org/abs/hep-ph/9710313
dc.identifier.urihttps://hdl.handle.net/20.500.14352/58729
dc.issue.number11
dc.journal.titlePhysical Review D
dc.language.isoeng
dc.page.final7142
dc.page.initial7133
dc.publisherAmerican Physical Society
dc.relation.projectIDAEN93-0776
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordChiral Perturbation-Theory
dc.subject.keywordSymmetry-Breaking Sector
dc.subject.keywordInteracting Higgs Sector
dc.subject.keywordStandard Model
dc.subject.keywordHeavy Higgs
dc.subject.keywordPrecise Formulation
dc.subject.keywordWeak Interactions
dc.subject.keywordLagrangians
dc.subject.keywordScattering
dc.subject.keywordUnitarity
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleApplicability constraints of the equivalence theorem
dc.typejournal article
dc.volume.number56
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