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arXiv · hep-th/9303122

Finiteness and Unitarity of Lorentz-Covariant Green-Schwarz Superstring Amplitudes

Nathan Berkovits
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Abstract

In two recent papers, a new method was developed for calculating ten-dimensional superstring amplitudes with an arbitrary number of loops and external massless particles, and for expressing them in manifestly Lorentz-invariant form. By explicitly checking for divergences when the Riemann surface degenerates, these amplitudes are proven to be finite. By choosing light-cone moduli for the surface and comparing with the light-cone Green-Schwarz formalism, these amplitudes are proven to be unitary.

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Nathan Berkovits. 1993-03-24. Finiteness and Unitarity of Lorentz-Covariant Green-Schwarz Superstring Amplitudes. https://doi.org/10.1016/0550-3213(93)90132-9

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