Studying the VBF Hjj and Hjjj Higgs Boson Production in QCD and EFT Theory

The discovery of the Higgs boson made it possible not only to study its physical properties and update its search strategies, but also to apply new theoretical constructs to explain its properties. Within the framework of the VBF Higgs boson production process in association with two, Hjj and three jets, Hjjj, we modeled its kinematic properties and calculated its production cross-sections. The calculations were carried out within two theories, QCD and EFT for both SM processes and for the MSSM and NMSSM models within the framework of the BSM physics searches.