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One-loop calculation of the oblique S and T parameters within strongly-coupled scenarios with a light Higgs-like boson


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Title: One-loop calculation of the oblique S and T parameters within strongly-coupled scenarios with a light Higgs-like boson
Authors : Rosell Escribá, Ignasi.
Keywords: Simetría (Física)Partículas (Física nuclear)Particles (Nuclear physics)Symmetry (Physics)
Publisher: Sissa Medialab.
Citation: Rosell, 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/10.22323/1.174.0091
Abstract: 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.
Description: Esta comunicación se encuentra disponible en la página web de PoS en la siguiente URL: https://pos.sissa.it/174/091/pdf
Esta 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.
URI: http://hdl.handle.net/10637/11775
Rights : http://creativecommons.org/licenses/by-nc-sa/4.0/deed.es
ISSN: 1824-8039 (Electrónico)
Issue Date: 22-Aug-2013
Center : Universidad Cardenal Herrera-CEU
Appears in Collections:Dpto. Matemáticas, Física y Ciencias Tecnológicas





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