Preliminary studies on selection and reconstruction of events with single top quark associated Higgs production with H $\rightarrow$ $\gamma$ $\gamma$ from proton-proton (pp) collisions have been performed. Events have been simulated with collision energy set at $\sqrt{s}$ $=$ 13 TeV. Simulation with the response of the CMS detector has been included. Basic reconstruction at detector level of top quark and Higgs masses has been implemented. Future step of this analysis is the study of the relative relationship of the tH production categories defined by: the top-Higgs Yukawa coupling (tHq) and the vector-boson-Higgs coupling (tHW) searching for an anomalous ratio beyond the Standard Model prediction.

Theory/Pheno