Three-Point Disc Amplitudes in the RNS Formalism
Abstract
We calculate all tree level string theory vacuum to Dp-brane disc amplitudes involving an arbitrary RR-state and two NS-NS vertex operators. This computation was earlier performed by K. Becker, Guo, and Robbins for the simplest case of a RR-state of type Cp-3. Here we use the aid of a computer to calculate all possible three-point amplitudes involving a RR-vertex operator of type Cp+1+2k.
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