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

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

1993-03-22

arxiv.org/abs/hep-th/9303122v2

Nucl.Phys. B408 (1993) 43-61

Physics

High Energy Physics

High Energy Physics - Theory

16 pages plain Tex; a revision is made to the second paragraph and footnote on page 3

Scientific paper

10.1016/0550-3213(93)90132-9

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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