The generating function of amplitudes with N twisted and M untwisted states
arXiv:1107.5525
Abstract
We show that the generating function of all amplitudes with N twisted and M untwisted states, i.e. the Reggeon vertex for magnetized branes on R^2 can be computed once the correlator of N non excited twisted states and the corresponding Green function are known and we give an explicit expression as a functional of the these objects
26 pages