Higgs decay into diphoton in the Composite Higgs Model
Haiying Cai
TL;DR
This paper investigates how the Higgs boson decays into diphotons within a minimal composite Higgs model, analyzing the impact of gauge couplings, unitarity constraints, and vector mesons on decay rates.
Contribution
It introduces a detailed analysis of Higgs decay channels in the composite Higgs framework, highlighting conditions for enhanced diphoton decay rates through vector mesons.
Findings
Higgs to diphoton rate can be enhanced with vector mesons.
Unitarity constraints limit Higgs coupling modifications.
Fine-tuning parameters achieves desired decay enhancements.
Abstract
We explore the Higgs couplings to gauge bosons in the minimal 4D composite Higgs model. The pions scatterings put unitary constraints on the couplings and therefore determine the branch ratios of various Higgs decays. Through fine tuning the parameters, enhancement of Higgs to diphoton rate is possible to be achieved with the existence of vector meson fields.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics