Argurio, Riccardo; Bertolini, Matteo; Ferretti, Gabriele; Lerda, Alberto; Petersson, Christoffer
(2007-05-15)
We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge theory at an orbifold singularity. These effects are not limited to reproducing the well known contributions of the gauge ...