OSQAR Annual Report 2021

Ongoing activities and future plans for OSQAR experiments namely OSQAR-CHASE, OSQAR-VMB and OSQAR-LSW are briefly reviewed. Based on the interaction of a laser beam with magnetic field lines, they are looking for new hypothetical particles at the low energy frontier, i.e. eV/sub-eV range, that could explain the origin of Dark Energy and Dark Matter. Upgrades of these experiments have been discussed within the scope of the Physic Beyond Collider (PBC) working group at CERN in synergy with other European initiatives from which VMB@CERN and JURA proposals are emerging.