Supersymmetric Extension of Technicolor & Fermion Mass Generation

Preprint number: CP3-Origins-2011-36 and DIAS-2011-28
Authors: Matti Antola (Helsinki), Stefano Di Chiara (CP3-Origins), Francesco Sannino (CP3-Origins), and Kimmo Tuominen (Jyvaskyla)
External link: arXiv.org

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We provide a complete extension of Minimal Walking Technicolor able to account for the standard model fermion masses. The extension becomes supersymmetric at energies greater or equal than the technicolor composite scale. We dubbed it Minimal Super Conformal Technicolor. We first summarize the salient Minimal Walking Technicolor properties and then provide the explicit ultraviolet extension. We consider a parameter space of the model in which we break supersymmetry at a scale larger than the technicolor one, and then integrate out the elementary Higgses. This procedure leads to specific structures for the relevant four fermion operators at the electroweak scale. We use these operators to derive the effective theory at the electroweak scale, and then determine the associated tree-level vacuum and low energy spectrum properties. Furthermore we investigate the phenomenological viability of the model by comparing its predictions with electroweak precision tests and experimental bounds on the mass spectrum. We then turn to the composite Higgs phenomenology at the LHC and show that current experiments are already constraining the parameter space.