Comparative studies of 2HDMs under the Higgs boson precision measurements

We perform comparative studies for four types of the two Higgs Doublet Models (2HDMs) under precision measurements Standard Model (SM) observables at proposed factories. explore discovery potential based on hypothetical deviations in data 2HDMs up to one-loop level. find $5\sigma$ observability from $\chi^2$ fitting a significant theory parameter space future For Type-I 2HDM, regions with $\cos(\beta-\alpha)\lesssim -0.1$ or $\cos(\beta-\alpha)\gtrsim 0.08$ are discoverable more than other three 2HDMs, region is even bigger: $|\cos(\beta-\alpha)|\gtrsim 0.02$ $\tan\beta\sim 1$. At small and large values $\tan\beta$, $\cos(\beta-\alpha)$ further tightened. examine extent which different 2HDM theories may be distinguishable one $95\%$ Confidence Level benchmark points as case studies. show that part can distinguished target model. The impacts loop corrections found certain regions.