Unconstrained ${\cal N}=2$ higher-spin gauge superfields and their hypermultiplet couplings

Abstract

In recent papers arXiv:2109.07639 [hep-th] and arXiv:2202.08196 [hep-th], we constructed free off-shell $\mathcal{N}=2$ supersymmetric higher spin gauge theories in harmonic superspace and their cubic couplings to hypermultiplet. The present report is a brief review of the results obtained.Comment: 0 + 9 pages, Invited talk at the International Conference on Quantum Field Theory, High-Energy Physics, and Cosmology (Dubna, July 18-21, 2022