The pomeron in closed bosonic string theory

TL;DR

This paper explores the properties of the pomeron within closed bosonic string theory, analyzing its couplings, deviations from linear Regge trajectories, and extending classical concepts to string theory in various backgrounds.

Contribution

It extends the understanding of the pomeron from quantum field theory to closed bosonic string theory, including computations of couplings and background effects.

Findings

Pomeron couplings to string states are computed in flat space.

Deviation from linear Regge trajectories is observed in AdS background.

Classical pomeron features are extended to string theory contexts.

Abstract

We review the features of the pomeron in the S-matrix theory and in quantum field theory. We extend those general properties to the pomeron of closed bosonic string theory in a Minkowskian background. We compute the couplings of the pomeron to the lowest mass levels of closed bosonic string states in flat space. We recognize the deviation from the linearity of the Regge trajectories in a five dimensional anti De Sitter background.