Four-point vector correlators and AdS/QCD correspondence

TL;DR

This paper derives four-point vector correlators in QCD using AdS/QCD correspondence, confirming meson poles and indicating a nonzero amplitude for certain gluon configurations, enhancing understanding of strong interactions.

Contribution

It provides a novel derivation of four-point vector correlators in QCD from AdS/QCD, accurately reproducing meson poles and revealing new amplitude behavior for longitudinal gluons.

Findings

Meson poles are correctly reproduced in the correlators.

A nonzero amplitude exists for zero virtuality longitudinal gluons.

The results suggest new insights into gluon interactions in QCD.

Abstract

We derive the four-point vector correlators in QCD from AdS/QCD correspondence. It is shown that meson poles are correctly reproduced. The final expression also suggests a nonzero amplitude in the limit of zero virtuality of two longitudinal gluons. This fact does not mean that one can produce, absorb or scatter real longitudinal gluons.