Class $\mathcal{S}$ on $S^2$

Satoshi Nawata, Yiwen Pan, Jiahao Zheng

We study 2d $\mathcal{N}=(0,2)$ and $\mathcal{N}=(0,4)$ theories derived from compactifying class $\mathcal{S}$ theories on $S^2$ with a topological twist. We present concise expre…