The worldsheet low-energy limit of the image superstring Original Research Article

We consider the image IIA superstring sigma-model in the background of the “spinning string” classical solution, which possesses two Noether spins. In the limit when one of the spins is infinite there are massless excitations, which govern the infrared worldsheet properties of the model. We obtain a sigma-model of image with fermions, which describes the dynamics of these massless modes.