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

**Authors:** Daniel J. Diroff

arXiv: 1907.07256 · 2019-07-18

## TL;DR

This paper extends the super Mumford form to super Riemann surfaces with Ramond and Neveu-Schwarz punctures, providing a tool for computing superstring scattering amplitudes.

## Contribution

It generalizes Voronov's 1988 result to include Ramond and Neveu-Schwarz punctures, expressing the super Mumford form in terms of local bases on moduli spaces.

## Key findings

- Derived explicit expressions for the super Mumford form with punctures.
- Connected the super Mumford form to superstring scattering amplitude measures.
- Analyzed the form over moduli space components with odd spin structures.

## 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 Ramond case we take the number of punctures to be large compared to the genus. We consider for the case of Neveu-Schwarz punctures 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 $H^0(X, \omega^j)$ for $\omega$ the Berezinian line bundle of a family of super Riemann surfaces.

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1907.07256/full.md

## References

23 references — full list in the complete paper: https://tomesphere.com/paper/1907.07256/full.md

---
Source: https://tomesphere.com/paper/1907.07256