A composite light scalar, electro-weak symmetry breaking and the recent LHC searches
arXiv:1112.2915 · doi:10.1016/j.nuclphysb.2012.06.012
Abstract
We construct a model in which electro-weak symmetry breaking is induced by a strongly coupled sector, which is described in terms of a five-dimensional model in the spirit of the bottom-up approach to holography. We compute the precision electro-weak parameters, and identify regions of parameter space allowed by indirect tests. We compute the spectrum of scalar and vector resonances, which contains a set of parametrically light states that can be identified with the electroweak gauge bosons and a light dilaton. There is then a little desert, up to 2-3 TeV, where towers of resonances of the vector, axial-vector and scalar particles appear.
Version accepted for publication. Two footnotes and one reference added
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