Oblique S and T Constraints on Electroweak Strongly-Coupled Models with a Light Higgs
NAGIOS: RODERIC FUNCIONANDO

Oblique S and T Constraints on Electroweak Strongly-Coupled Models with a Light Higgs

DSpace Repository

Oblique S and T Constraints on Electroweak Strongly-Coupled Models with a Light Higgs

Show simple item record

dc.contributor.author Pich Zardoya, Antonio
dc.contributor.author Rosell Escribà, Ignasi
dc.contributor.author Sanz Cillero, Juan José
dc.date.accessioned 2014-09-18T09:00:53Z
dc.date.available 2014-09-18T09:00:53Z
dc.date.issued 2014
dc.identifier.uri http://hdl.handle.net/10550/37987
dc.description.abstract Using a general effective Lagrangian implementing the chiral symmetry breaking SU(2)L x SU(2)R -> SU(2){L+R}, we present a one-loop calculation of the oblique S and T parameters within electroweak strongly-coupled models with a light scalar. Imposing a proper ultraviolet behaviour, we determine S and T at next-to-leading order in terms of a few resonance parameters. The constraints from the global fit to electroweak precision data force the massive vector and axial-vector states to be heavy, with masses above the TeV scale, and suggest that the W+W- and ZZ couplings of the Higgs-like scalar should be close to the Standard Model value. Our findings are generic, since they only rely on soft requirements on the short-distance properties of the underlying strongly-coupled theory, which are widely satisfied in more specific scenarios.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2014, vol. 2014, num. 1, p. 157
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Pich Zardoya, Antonio Rosell Escribà, Ignasi Sanz Cillero, Juan José 2014 Oblique S and T Constraints on Electroweak Strongly-Coupled Models with a Light Higgs Journal of High Energy Physics 2014 1 157
dc.title Oblique S and T Constraints on Electroweak Strongly-Coupled Models with a Light Higgs
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-09-18T09:00:53Z
dc.identifier.doi http://dx.doi.org/10.1007/JHEP01(2014)157
dc.identifier.idgrec 097639

View       (878.4Kb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics