Publication:
Decoupling of supersymmetric particles

dc.contributor.authorDobado González, Antonio
dc.contributor.authorHerrero, M. J.
dc.contributor.authorPeñaranda, S.
dc.date.accessioned2023-06-20T18:49:58Z
dc.date.available2023-06-20T18:49:58Z
dc.date.issued1999-02
dc.description© Springer-Verlag 1999
dc.description.abstractThe possibility of a heavy supersymmetric spectrum at the Minimal Supersymmetric Standard Model is considered and the decoupling from the low energy electroweak scale is analyzed in detail. The formal proof of decoupling of supersymmetric particles from low energy physics is stated in terms of the effective action for the particles of the Standard Model that results by integrating out all the sparticles in the limit where their masses are larger than the electroweak scale. The computation of the effective action for the standard electroweak gauge bosons W+/-, Z and gamma is performed by integrating out all the squarks, sleptons, charginos and neutralinos to one-loop. The Higgs sector is not considered in this paper. The large sparticle masses limit is also analyzed in detail. Explicit analytical formulae for the two-point functions of the electroweak gauge bosons to be Valid in that limit are presented. Finally, the decoupling of sparticles in the S, T and U parameters is studied analitically. A discussion on how the decoupling takes place in terms of both the physical sparticle masses and the not-physical mass parameters as the mu-parameter and the soft-breaking parameters is included.
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/22726
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dc.identifier.doi10.1007/s100520050410
dc.identifier.issn1434-6044
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/20.500.14352/58725
dc.issue.number2
dc.journal.titleEuropean Physical Journal C
dc.language.isoeng
dc.page.final339
dc.page.initial313
dc.publisherSpringer Verlag
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordUltra Heavy Fermions
dc.subject.keywordHiggs Bosons
dc.subject.keywordWeak Interactions
dc.subject.keywordN=1 Supergravity
dc.subject.keywordStandard Model
dc.subject.keywordOne-Loop
dc.subject.keywordMssm
dc.subject.keywordMass
dc.subject.keywordSpectrum
dc.subject.keywordRenormalization
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleDecoupling of supersymmetric particles
dc.typejournal article
dc.volume.number7
dspace.entity.typePublication
relation.isAuthorOfPublication16523fad-99a9-422c-9a8e-c949ccffadec
relation.isAuthorOfPublication.latestForDiscovery16523fad-99a9-422c-9a8e-c949ccffadec
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