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arXiv · hep-th/9912103

The Supermoduli Space of Matrix String Theory

Ph. Brax
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Abstract

We study matrix string scattering amplitudes and matrix string instantons on a marked Riemann surface in the limit of a vanishing string coupling constant. We give an explicit parameterization of the moduli space of such instantons. We also give a description of the set of fermionic supermoduli. The integration over the supermoduli leads to the inclusion of picture changing operators at the interaction points. Finally we investigate the large N limit of the measure on the instanton moduli space and show its convergence to the Weil-Petersson measure on the moduli space of marked Riemann surfaces.

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Ph. Brax. 1999-12-13. The Supermoduli Space of Matrix String Theory. https://doi.org/10.1088/1126-6708%2F2000%2F07%2F020

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