The Supermoduli Space of Matrix String Theory

Details The Supermoduli Space of Matrix String Theory The Supermoduli Space of Matrix String Theory

1999-12-13

arxiv.org/abs/hep-th/9912103v1

JHEP 0007 (2000) 020

Physics

High Energy Physics

High Energy Physics - Theory

30 Pages, Latex, 2 Postscript figures

Scientific paper

10.1088/1126-6708/2000/07/020

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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