The S-matrix of 2D type 0B string theory. Part I. Perturbation theory revisited

A bstract We study the perturbative S-matrix of closed strings in two-dimensional type 0B string theory from worldsheet perspective, by directly integrating correlation functions $$ \mathcal{N} N = 1 Liouville theory. The latter is computed numerically using recurrence relations for super-Virasoro conformal blocks. show that tree level 3- and 4-point amplitudes are agreement with proposed dual matrix quantum mechanics. non-perturbative aspects duality will be analyzed a companion paper.