Short Distance Contributions to Graviton-Graviton Scattering: Matrix Theory versus Supergravity

TL;DR

This paper investigates graviton scattering with higher-dimensional operators, finding discrepancies with Matrix Theory predictions and suggesting a complex relationship with supergravity in large compactification limits.

Contribution

It provides evidence that finite N Matrix Theory does not straightforwardly match supergravity results when higher-order corrections are considered.

Findings

Results do not match known effective action terms in Matrix Theory.

Supports the idea that finite N Matrix Theory and supergravity are not simply related.

Highlights the role of higher-dimensional operators in graviton scattering.

Abstract

We study graviton scattering in the presence of higher dimensional operators - particularly, R^4 - arising from loop effects. We find that the results do not correspond to any known terms in the effective action of Matrix Theory, thus lending support to the idea that the finite N Matrix Theory has no simple relation to supergravity with large compactification radii.