Constraints on the Scalar Sector of the Renormalizable Coloron Model
R. Sekhar Chivukula, Arsham Farzinnia, Jing Ren, and Elizabeth H., Simmons
TL;DR
This paper investigates the constraints on the renormalizable coloron model, an extension of the standard model's color sector, using theoretical stability and unitarity conditions along with experimental data from electroweak precision tests and LHC Higgs measurements.
Contribution
It provides a comprehensive analysis of the parameter space of the coloron model considering multiple theoretical and experimental constraints.
Findings
Strong restrictions on the model's parameters from combined constraints
Certain regions of parameter space are excluded by vacuum stability and unitarity
Compatibility with LHC Higgs data limits possible model extensions
Abstract
The renormalizable coloron model is the minimal extension of the standard model color sector, in which the color gauge group is enlarged to SU(3)_{1c} x SU(3)_{2c}. In this paper we discuss the constraints on this model derived from the requirements of vacuum stability, tree-level unitarity, electroweak precision measurements, and from LHC measurements of the properties of the observed Higgs-like scalar boson. The combination of these theoretical and experimental considerations strongly constrains the allowed parameter space. (Erratum appended, March 2014.)
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