paper

Superstring Interactions in a pp-wave Background II

arXiv:hep-th/0206073 · doi:10.1088/1126-6708/2003/01/036

Abstract

In type IIB light-cone superstring field theory, the cubic interaction has two pieces: a delta-functional overlap and an operator inserted at the interaction point. In this paper we extend our earlier work hep-th/0204146 by computing the matrix elements of this operator in the oscillator basis of pp-wave string theory for all mu p^+ alpha'. By evaluating these matrix elements for large mu p^+ alpha', we check a recent conjecture relating matrix elements of the light-cone string field theory Hamiltonian (with prefactor) to certain three-point functions of BMN operators in the gauge theory. We also make several explicit predictions for gauge theory.

20 pages, harvmac. v3: Note added, corrected a minus sign in the prefactor

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