Linear σ model for the Goldstone Higgs - Experimental tests

2016/05/23 by Sara Saa, Saa, Sara
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.1605.07213

4 pages, 2 figures. To appear in the conference proceedings of the 51st Rencontres de Moriond, Electroweak Session, 12-19 March 2016 in La Thuile, Italy

arxiv created 2016/05/23 · arxiv updated 2016/05/25

Abstract

In order to explore a possible dynamical nature for the Higgs field (such as its being a pseudo-Goldstone boson) we develop a renormalizable Lagrangian based on the minimal SO(5) linear σ-model with the symmetry softly broken to SO(4), including gauge bosons and fermions. We then present the phenomenological implications and constraints from precision observables and the impact on present and future LHC data.

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