Phenomenology of Partially Composite Standard Model

Abstract

We propose a model to describe the low energy physics of partially composite Standard Model, in which the electroweak sector in the Standard Model is weakly coupled to some strong dynamics. The vector resonances in the strong sector are introduced as the effective degrees of freedom, W' and Z', which mixes with the W and Z bosons through the electroweak symmetry breaking. Through the coupling to the strong sector, the Standard Model Higgs boson becomes partially composite, and its properties are modified. We study the constraints from the electroweak precision data and direct searches of W' and Z' at the LHC expriments, and discuss the effects on the production/decay properties of the Higgs boson.

33 pages, 40 figures

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• LHC Higgs Signatures from Topflavor Seesaw Mechanism
• LHC Higgs Signatures from Extended Electroweak Gauge Symmetry
• Search for a W' or techni-rho decaying into WZ in pp collisions at sqrt(s) = 7 TeV
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• Classification of simple heavy vector triplet models
• Emergent two-Higgs doublet models