On the Super Mumford Form in the Presence of Ramond and Neveu-Schwarz Punctures

Abstract

We generalize the result of Voronov (1988) to give an expression for the super Mumford form $\mu$ on the moduli spaces of super Riemann surfaces with Ramond and Neveu-Schwarz punctures in the limit where the number of punctures is large compared to the genus. In the case of Neveu-Schwarz punctures we consider the super Mumford form over the component of the moduli space corresponding to an odd spin structure. The super Mumford form $\mu$ can be used to create a measure whose integral computes scattering amplitudes of superstring theory. We express $\mu$ in terms of local bases of $H^0(\Sigma ,{\omega }^j)$ for $\omega$ the Berezinian line bundle of a family of super Riemann surfaces.