Ponente
Descripción
The production of dibosons (VV, where V can be either a W or Z boson) holds a crucial role in the understanding of the electroweak sector of the Standard Model as well as its possible extensions. The WZ process allows to test several theoretical features of interest, such as charge asymmetries in the initial state, measurement of polarization fractions for W and Z bosons and provides direct access to trilinear gauge couplings. The polarization properties of the WZ production have been measured by both CMS and ATLAS collaborations at a centre of mass energy of 13 TeV in pp collisions at LHC, using final states with three leptons. The boson polarization is studied in terms of the polarization angle between the boson and the lepton and can be both single (measured for each boson independently) and double (measured for both bosons at the same time). With the new Run 3 data at an energy of 13.6 TeV, the CMS Collaboration is starting to perform their first studies of the polarization of WZ process at this new energy.