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Graviton-Scalar Interaction in the PP-Wave Background

K. Bobkov
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Abstract

We compute the graviton two scalar off-shell interaction vertex at tree level in Type IIB superstring theory on the pp-wave background using the light-cone string field theory formalism. We then show that the tree level vertex vanishes when all particles are on-shell and conservation of p_{+} and p_{-} are imposed. We reinforce our claim by calculating the same vertex starting from the corresponding SUGRA action expanded around the pp-wave background in the light-cone gauge.

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K. Bobkov. 2003-03-20. Graviton-Scalar Interaction in the PP-Wave Background. https://doi.org/10.1142/s0217732303011381

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