Date and time:  December 17th at 11:00 AM CET

Speaker: Nuno Rosa Agostinho

Abstract: Presently, the negative results of the search for direct new physics effects indicate that new states are probably heavy, therefore, there might exist a mass gap between the SM states and the new ones. Thus, against this background, effective lagrangians raise as a most adequate tool for scientific advancement and we perform a comprehensive study of the Higgs couplings, gauge-boson couplings to fermions and triple gauge boson vertices. Our framework of effective theories includes the effects of the dimension-six operators contributing to these observables. We quantify the improvement on the determination of the 20 Wilson coefficients by the inclusion of the Run 2 results and we discuss the discrete (quasi)-degeneracies existing in the parameter space of operator coefficients relevant for the Higgs couplings to fermions and gauge bosons.



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