Rosell Escribá, IgnasiUCH. Departamento de Matemáticas, Física y Ciencias TecnológicasProducción Científica UCH 20132020-12-172020-12-172013-08-22Rosell, I. (2013). One-loop calculation of the oblique S and T parameters within strongly-coupled scenarios with a light Higgs-like boson. Proceedings of Science, vol. 174 (ICHEP2012), art. 091 (22 aug.). DOI: https://doi.org/10.22323/1.174.00911824-8039 (Electrónico)http://hdl.handle.net/10637/11775Esta comunicación se encuentra disponible en la página web de PoS en la siguiente URL: https://pos.sissa.it/174/091/pdfEsta comunicación forma parte de las comunicaciones leídas en la "36th International Conference on High Energy Physics (ICHEP2012)" dentro de la sesión "Parallel Session 1 - The Standard Model" celebrada en Melbourne (Australia) entre el 4-11 de julio de 2012.We present a one-loop calculation of the oblique S and T parameters within strongly-coupled models of electroweak symmetry breaking with a light Higgs-like boson. We use a general effective Lagrangian, implementing the chiral symmetry breaking SU(2)L⊗SU(2)R →SU(2)L+R with Goldstones, gauge bosons, the Higgs-like scalar and one multiplet of vector and axial-vector massive resonance states. The estimation is based on the short-distance constraints and a dispersive approach. The experimentally allowed range forces the vector and axial-vector states to be heavy, with masses above the TeV scale, and suggests that the Higgs-like scalar should have a WW coupling close to the Standard Model one.application/pdfesopen accessSimetría (Física)Partículas (Física nuclear)Particles (Nuclear physics)Symmetry (Physics)Comunicaciónhttps://doi.org/10.22323/1.174.0091https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es