High Energy QCD: Stringy Picture from Hidden Integrability

Details High Energy QCD: Stringy Picture from Hidden Integrability High Energy QCD: Stringy Picture from Hidden Integrability

2002-04-22

arxiv.org/abs/hep-th/0204183v1

JHEP 0205 (2002) 053

Physics

High Energy Physics

High Energy Physics - Theory

37 pages, 3 figures

Scientific paper

10.1088/1126-6708/2002/05/053

We discuss the stringy properties of high-energy QCD using its hidden integrability in the Regge limit and on the light-cone. It is shown that multi-colour QCD in the Regge limit belongs to the same universality class as superconformal $\cal{N}$=2 SUSY YM with $N_f=2N_c$ at the strong coupling orbifold point. The analogy with integrable structure governing the low energy sector of $\cal{N}$=2 SUSY gauge theories is used to develop the brane picture for the Regge limit. In this picture the scattering process is described by a single M2 brane wrapped around the spectral curve of the integrable spin chain and unifying hadrons and reggeized gluons involved in the process. New quasiclassical quantization conditions for the complex higher integrals of motion are suggested which are consistent with the $S-$duality of the multi-reggeon spectrum. The derivation of the anomalous dimensions of the lowest twist operators is formulated in terms of the Riemann surfaces

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