Electroweak symmetry breaking plays a central role in the Standard Model of particle physics, as it explains the origin of elementary particle masses via the interactions of each particle with the Higgs field. Besides the measurements of the Higgs boson properties, the study of the scattering of massive vector bosons with spin 1 allows the nature of electroweak symmetry breaking to be probed. Among all processes related to vector-boson scattering, the electroweak production of two jets and a Z-boson pair is a rare and important one. Its observation completes the observation of all major channels and confirms the consistency of the experimental results with the mechanism predicted by the Standard Model. This result marks the start of a new era in precision studies of rare processes in the Electro-Weak sector and in searches for new phenomena that can be investigated with higherprecision and in higher energy regimes with future larger datasets.
Contact person: Marek Taševský