We review the status of 2-Higgs doublet model (2HDM) type-II, in light current experimental results and various theoretical consistency conditions. Compared to existing literature, this paper, we apply for first time a new method that can improve standard procedure setting bounds on 2HDM parameter space, as no evidence has been found so far. Our numerical framework, called Magellan, statistical...

We study the dilution of dark matter (DM) relic density caused by electroweak first-order phase transition (FOPT) in singlet extension models, including standard model (xSM), two-Higgs-doublet (2HDM+S) and next-to-minimal supersymmetric (NMSSM). find that these models entropy released strong FOPT can dilute DM to 1/3 at most. Nevertheless, xSM NMSSM where field configure is relevant temperature...

Recently, the CDF collaboration has reported a new precision measurement of W-boson mass, MW, showing large deviation from value predicted by Standard Model (SM). In this paper, we analyse possible physics contributions to MW extended Higgs sectors. We focus on Two-Higgs-Doublet (2HDM) as concrete example. Employing predictions for electroweak observables in 2HDM at two-loop level and taking in...

Top quarks produced in pairs are predicted to experience spin correlations. Due to the large tt statistics expected for the LHC, it should be possible to search for new physics effects in angular variables sensitive to these correlations. We investigate, for a general two-Higgs Doublet Model (2HDM), the charged Higgs boson decay of the top quark through the channel t → bH → bτντ . Analytic resu...