Scale Anomaly and "Soft" Pomeron in QCD

@article{Kharzeev2000ScaleAA,
  title={Scale Anomaly and "Soft" Pomeron in QCD},
  author={D. E. Kharzeev and Eugene Levin},
  journal={Nuclear Physics},
  year={2000},
  volume={578},
  pages={351-363}
}
Abstract We propose a new non-perturbative approach to hadronic interactions at high energies and small momentum transfer, which is based on the scale anomaly of QCD and emphasizes the role of semi-classical vacuum fields. We find that the hadron scattering amplitudes exhibit Regge behavior and evaluate the intercept α (0) of the corresponding trajectory. Both the intercept and the scale for the slope of the trajectory appear to be determined by the energy density of non-perturbative QCD vacuum… 

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