Melnikov, IV; Plesser, MR, *A-Model correlators from the Coulomb branch*,
The Journal of High Energy Physics, vol. 06 no. 2
(2006),
pp. 044- [0507187v1], [doi] .
**Abstract:**

*We compute the contribution of discrete Coulomb vacua to A-Model correlators in toric Gauged Linear Sigma Models. For models corresponding to a compact variety, this determines the correlators at arbitrary genus. For non-compact examples, our results imply the surprising conclusion that the quantum cohomology relations break down for a subset of the correlators. © SISSA 2006.*