  M5 branes probing D-type singularities give rise to 6d (1,0) SCFTs with $SO
\times SO$ flavor symmetry known as D-type conformal matter theories. Gauging
the diagonal $SO$-flavor symmetry leads to a little string theory with an
intrinsic scale which can be engineered in F-theory by compactifying on a
doubly-elliptic Calabi-Yau manifold. We derive Seiberg-Witten curves for these
little string theories which can be interpreted as mirror curves for the
corresponding Calabi-Yau manifolds. Under fiber-base duality these models are
mapped to D-type quiver gauge theories and we check that their Seiberg-Witten
curves match. By taking decompactification limits, we construct the curves for
the related 6d SCFTs and connect to known results in the literature by further
taking 5d and 4d limits.

High Energy Physics - Theory