Multiloop calculations in covariant superstring theory
E Verlinde, H Verlinde - Physics Letters B, 1987 - Elsevier
Physics Letters B, 1987•Elsevier
We give an explicit construction of the superstring multiloop amplitudes in terms of theta
functions. We analyse the correlation functions of the space-time supersymmetry current and
find that these contain unphysical poles. Using BRST-invariance we show that these poles
have no physical effect for on-shell amplitudes, and that the partition functions is given by a
total derivative on moduli space.
functions. We analyse the correlation functions of the space-time supersymmetry current and
find that these contain unphysical poles. Using BRST-invariance we show that these poles
have no physical effect for on-shell amplitudes, and that the partition functions is given by a
total derivative on moduli space.
We give an explicit construction of the superstring multiloop amplitudes in terms of theta functions. We analyse the correlation functions of the space-time supersymmetry current and find that these contain unphysical poles. Using BRST-invariance we show that these poles have no physical effect for on-shell amplitudes, and that the partition functions is given by a total derivative on moduli space.
Elsevier
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