Determining Compositeness of Hadronic Resonances: the $\mathrm{\Lambda }(1405)$ Radiative Decay and the $a_0(980)$-$f_0(980)$ Mixing

Recently the concept of compositeness has been developed so as to distinguish whether interested hadrons are hadronic molecules or not. Here, in terms of compositeness, we investigate $\bar{K}N$ molecular structure of the $\Lambda (1405)$resonancewiththe$\Lambda (1405)$radiativedecayand$K \bar{K}$molecularstructureofthe$a_{0} (980)$and$f_{0} (980)$resonanceswiththe$a_{0} (980)$-$f_{0} (980)$ mixing.