# Stress-tensor OPE in N=2$$ \mathcal{N}=2 $$ superconformal theories

@article{Liendo2015StresstensorOI, title={Stress-tensor OPE in N=2\$\$ \mathcal\{N\}=2 \$\$ superconformal theories}, author={Pedro Liendo and Israel Ram{\'i}rez and Jihye Seo}, journal={Journal of High Energy Physics}, year={2015}, volume={2016}, pages={1-26} }

A bstractWe carry out a detailed superspace analysis of the OPE of two N=2$$ \mathcal{N}=2 $$ stress-tensor multiplets. Knowledge of the multiplets appearing in the expansion, together with the two-dimensional chiral algebra description of N=2$$ \mathcal{N}=2 $$ SCFTs, imply an analytic bound on the central charge c. This bound is valid for any N=2$$ \mathcal{N}=2 $$ SCFT regardless of its matter content and flavor symmetries, and is saturated by the simplest Argyres-Douglas fixed point. We…

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