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QCD, diffraction and string theory

Romuald A. Janik
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Abstract

Recently, string theory on some specific curved backgroud spacetime geometries has been conjectured to be equivalent to certain gauge theories (AdS/CFT correspondence). This correspondence may be used to investigate the non-perturbative regime of gauge theories. I describe its application to the study of soft scattering amplitudes in a confining gauge theory. I describe two qualitatively different applications: amplitudes with vacuum quantum number exchange (Pomeron-like), amplitudes with Reggeon exchange. The last case requires going beyond eikonal approximation on the gauge theory side.

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Romuald A. Janik. 2002-07-08. QCD, diffraction and string theory. https://arxiv.org/abs/hep-ph/0207111

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