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Chiral Lagrangians as a tool to probe the symmetry-breaking sector of the SM at LEP

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dc.contributor.authorDobado González, Antonio
dc.contributor.authorEspriu, Domènec
dc.contributor.authorHerrero, M. J.
dc.date.accessioned2023-06-20T18:50:45Z
dc.date.available2023-06-20T18:50:45Z
dc.date.issued1991-02-14
dc.description.abstractAn effective SU(2)L X U(1)Y invariant chiral lagrangian can accommodate any symmetry breaking scheme in the standard model. It is shown that all process-independent quantities relevant to LEP precision measurements (DELTA-rho, DELTA-K and DELTA-r) depend only on one coefficient of the weak chiral lagrangian, taking different values depending on the precise symmetry breaking scheme. We remove any ambiguity due to the use of an effective theory by a careful choice of observables and make definite predictions that can be tested in the foreseeable future. Our analysis complements nicely that of longitudinal W and Z scattering.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/22887
dc.identifier.doi10.1016/0370-2693(91)90786-P
dc.identifier.issn0370-2693
dc.identifier.officialurlhttp://dx.doi.org/10.1016/0370-2693(91)90786-P
dc.identifier.relatedurlhttp://www.sciencedirect.com
dc.identifier.relatedurlhttp://cds.cern.ch/record/210696
dc.identifier.urihttps://hdl.handle.net/20.500.14352/58757
dc.issue.number3
dc.journal.titlePhysics Letters B
dc.page.final414
dc.page.initial405
dc.publisherElsevier Science BV
dc.rights.accessRightsmetadata only access
dc.subject.cdu53
dc.subject.keywordStandard Model
dc.subject.keywordHiggs Bosons
dc.subject.keywordOne-Loop
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleChiral Lagrangians as a tool to probe the symmetry-breaking sector of the SM at LEP
dc.typejournal article
dc.volume.number255
dspace.entity.typePublication
relation.isAuthorOfPublication16523fad-99a9-422c-9a8e-c949ccffadec
relation.isAuthorOfPublication.latestForDiscovery16523fad-99a9-422c-9a8e-c949ccffadec

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