Gauged 2-form Symmetries in 6D SCFTs Coupled to Gravity

Understand

We study six dimensional supergravity theories with superconformal sectors (SCFTs).

• Instances of such theories can be engineered using type IIB strings, or more generally F-Theory, which translates field theoretic constraints to geometry.
• Specifically, we study the fate of the discrete 2-form global symmetries of the SCFT sectors.
• For both $(2,0)$ and $(1,0)$ theories we show that whenever the charge lattice of the SCFT sectors is non-primitively embedded into the charge lattice of the supergravity theory, there is a subgroup of these 2-form symmetries that remains unbroken by BPS strings.