Soft Pomeron in QCD

Abstract

This is a talk, given at Diffraction'2000, Sept. 2 - 7, Centraro, Italy. This talk is a brief presentation of our view on the Pomeron, as a non-perturbative QCD phenomenon but from sufficiently short distances. Our approach is based on the scale anomaly of QCD and emphasizes the r{ô}le of semi-classical QCD vacuum fields. We show that both the intercept and the slope of Pomeron trajectory appear to be determined by the energy density of non-perturbative QCD vacuum. The particular example of semi-classical QCD vacuum fields is discussed based on a new type of instanton-induced interactions (``instanton ladder'') that leads to the rising with energy cross section $\sigma \sim s^{{\Delta }_P}$ of Regge type (the Pomeron).

6 pages, 9 figures in eps. files

References in corpus (5)

• Glueball masses and Pomeron trajectory in nonperturbative QCD
• Confronting Instanton Perturbation Theory with QCD Lattice Results
• Scale Anomaly and "Soft" Pomeron in QCD
• Nonperturbative Gluon Radiation and Energy Dependence of Elastic Scattering
• Glueball spectrum and the Pomeron in the Wilson loop approach