Vacuum vertices and the ghost-dilaton
arXiv:hep-th/9507038 · doi:10.1016/0550-3213(96)00179-4
Abstract
We complete the proof of the ghost-dilaton theorem in string theory by showing that the coupling constant dependence of the vacuum vertices appearing in the closed string action is given correctly by one-point functions of the ghost-dilaton. To prove this at genus one we develop the formalism required to evaluate off-shell amplitudes on tori.
15 pages, 1 figure, uses phyzzx macros