The crucial discovery of the Higgs boson at LHC has allowed to confirm and complete the framework of the Standard Model (SM) of particle physics. In the coming years, the experimental studies will focus on three key sectors, necessary to answer the many open questions still raised by the SM:

• The high-energy frontier. ATLAS and CMS will continue the search for new particles as well as the more precise measurement of the Higgs couplings and of the electro-weak sector. After the high luminosity stage, a new phase is being studied with ambitious projects like HE-LHC (center of mass energy of 33 TeV) as well as new colliders (ILC, FCC).
• The high luminosity frontier. This mission can be fulfilled with the search for possible deviations from the SM in the flavor sector (b and c quarks) by the experiments LHC-B and Belle-II.
• Neutrino physics, which opens the road to the study of a new source of CP violation in the lepton sector (a crucial element to explain the matter-antimatter asymmetryin the Universe). The new phase of the T2K experiment is a first step in this direction. the new projects of long baseline experiments in construction (DUNE) or in preparation (Hyper-Kamiokande) will allow precision studies of the neutrino mixing matrix. Several experiments searching for neutrinoless double beta decay are in progress and the future experiments in this sector require important technological developments. A flagship project named BSM-Nu started at the beginning of 2020 to precisely characterize the nature of neutrinos and thus to shed light in the nature of the new physics beyond the SM.