Scattering Amplitudes of QCD String
arXiv:1208.1209
Abstract
I review the derivation of large-N QCD meson scattering amplitudes in the Regge regime, where the effective theory of long strings applies in d=4. A special attention is payed to the reparametrization path integral which plays a crucial role in the consistency of off-shell amplitudes. I show how the linear Reggeon trajectory is obtained for QCD string in the mean-field approximation, which turns out to be exact for the Nambu-Goto string, and discuss the interrelation with perturbative QCD.
Talk: 21pp., 6 figs; v2: polished
References in corpus (6)
- Gluon scattering amplitudes at strong coupling
- Conformal properties of four-gluon planar amplitudes and Wilson loops
- MHV Amplitudes in N=4 Super Yang-Mills and Wilson Loops
- Implementation of the Duality between Wilson loops and Scattering Amplitudes in QCD
- Effective String Theory and QCD Scattering Amplitudes
- An interplay between static potential and Reggeon trajectory for QCD string