UC Davis

This dissertation includes several models motivated by the theoretical and experimental problems in the Standard Model of particle physics. The models are based on the composite Higgs models with different cosets. We show that, with enlarged symmetries and cosets, we are able to address the hierarchy problem together with the fine-tuning issue in the Higgs potential, the mass hierarchy between different fermions, and the current B-meson anomalies. A detailed study of phenomenology, including direct and indirect searches, is also presented. The models will be tested in the future, which might unveil the deep connection between Higgs physics and flavor physics.