Phenomenological aspects of Electroweak interactions
by
A500
Dip.to di Fisica Univ. Genova
Seminario di fisica teorica
This talk will cover key elements of the Electroweak (EW) sector of the Standard Model (SM). I will firstly review the underlying structure and general features of EW interactions, from the well known Spontaneous Symmetry Breaking (SSB) mechanism to the complex-mass scheme for the decay of weak gauge bosons. An overview of relevant related topics, such as the Goldstone Boson Equivalence Theorem (GBET), will also be discussed. Finally, I will briefly address the behavior of EW corrections at high energy. In this regime, one-loop EW corrections are logarithmically enhanced and in tail of kinematic distributions can yield correction factors of several tens of percent, reaching a similar size to the corresponding QCD ones. Thus, a very good control of these effects, and of remaining theoretical uncertainties, is crucial for the success of many physics endeavours at the LHC.