Graviton-Scalar Interaction in the PP-Wave Background

Details Graviton-Scalar Interaction in the PP-Wave Background Graviton-Scalar Interaction in the PP-Wave Background

2003-03-03

arxiv.org/abs/hep-th/0303007v3

Mod.Phys.Lett. A18 (2003) 1441-1462

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, harvmac One reference added. A few comments changed in the introduction. The "cyclic perms." term removed from some

Scientific paper

10.1142/S0217732303011381

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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