Instantons on Quivers and Orientifolds

TL;DR

This paper calculates the prepotential for a class of gauge theories derived from ${ m extbf{N}=4}$ SYM, including quiver and orientifold models, confirming consistency with Seiberg-Witten theory and prior research.

Contribution

It provides explicit computations of the prepotential for quiver and orientifold gauge theories with product groups and bifundamental matter, extending previous analyses.

Findings

Results agree with Seiberg-Witten analysis.

Prepotential computed for massive orientifold theories with SO/Sp groups.

No gravitational corrections in the main results.

Abstract

We compute the prepotential for gauge theories descending from ${\cal N}=4$ SYM via quiver projections and mass deformations. This accounts for gauge theories with product gauge groups and bifundamental matter. The case of massive orientifold gauge theories with gauge group SO/Sp is also described. In the case with no gravitational corrections the results are shown to be in agreement with Seiberg-Witten analysis and previous results in the literature.