Unconstrained off-shell superfield formulation of $4D,\mathcal{N}=2$ supersymmetric higher spins

Ioseph Buchbinder, Evgeny Ivanov, Nikita Zaigraev

We present, for the first time, the complete off-shell $4D,\mathcal{N}=2$ superfield actions for any free massless integer spin $\mathbf{s}\ge 2$ fields, using the $\mathcal{N}=2$ harmon…