| My research interest lies in understanding particle physics not explained by the Standard Model, using both phenomenological and formal approaches. Recently, a good portion of my research has been devoted to studying the formal aspects of the Standard Model Effective Field Theory, including how to systematically count the number of independent effective operators, as well as how to efficiently perform matching, running, and mapping analyses. A few quite useful theoretical techniques have been developed. Another branch of my research is to study the implications of the LHC data. I build phenomenological models, and perform collider simulations to check their consistency with the data and their discovery potentials in future. I have also worked on the naturalness problem of the Higgs, neutrino physics, and the origin of baryon asymmetry in the universe. | My research interest lies in understanding particle physics not explained by the Standard Model (SM). I use both phenomenological and formal approaches. On the phenomenological side, I have been focused on two directions. One is studying how to use effective field theories (EFTs) more efficiently, especially the SM EFT. This provides a greatly simplified way of investigating the consequences of high-energy models on low-energy observables. The other is to study the implications of the LHC data. By performing collider simulations, I impose bounds from various LHC searches on phenomenological or simplified models, and obtain insights for model building. On the formal side, I am interested in deriving consistency conditions on sensible theories from basic principles, such as causality, unitarity, crossing relations, etc. This philosophy has been quite successful in the area of CFT, especially with the conformal bootstrap equations, but there are a lot more to be done. I have also worked on the naturalness problem of the Higgs, neutrino physics, and the origin of baryon asymmetry in the universe. |
