Equivalence of Two-Loop Superstring Amplitudes in the Pure Spinor and RNS Formalisms

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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9 pages harvmac tex, added introductory paragraph

Scientific paper

10.1103/PhysRevLett.96.011602

The pure spinor formalism for the superstring has recently been used to
compute massless four-point two-loop amplitudes in a manifestly super-Poincare
covariant manner. In this paper, we show that when all four external states are
Neveu-Schwarz, the two-loop amplitude coincides with the RNS result.

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