We consider correlation functions in 6D (2,0) theories of two 1/2-Bogomol'nyi-Prasad-Sommerfield (BPS) operators inserted away from a 1/2-BPS surface defect. In the large central-charge limit the leading connected contribution corresponds to sums of tree-level Witten diagram in AdS₇×S⁴ in the presence of an AdS₃ defect. We show that these correlators can be uniquely determined by imposing only superconformal symmetry and consistency conditions, eschewing the details of the complicated effective Lagrangian. We explicitly compute all such two-point functions. The result exhibits remarkable hidden simplicity.
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Chen et al. (2024) studied this question.
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