Gauge invariant effective action for high-energy processes in QCD

Abstract

The Born amplitudes for quasi-multi-Regge kinematics of produced gluons are constructed in accordance with the Feynman rules including apart from usual Yang-Mills vertices also an infinite number of induced vertices. The new vertices describe the interaction of physical gluons produced in direct channels with the reggeized gluons propagating in crossing channels. The nonlinear gauge invariant effective action reproducing these Feynman rules is constructed with the use of the Wilson contour integrals. After integrating over the physical degrees of freedom the reggeon action is derived.

29 pages, LaTeX, slightly expanded introduction and cosmetical changes to some formulae

References in corpus (7)

• High energy QCD as a completely integrable model
• High Energy Asymptotics of Multi--Colour QCD and Exactly Solvable Lattice Models
• Effective Action for Multi-Regge Processes in QCD
• QCD at High Energies and Two-Dimensional Field Theory
• Symmetry Properties of the Effective Action for High-Energy Scattering in QCD
• Effective Action for High-Energy Scattering in Gravity
• The $O(g^4)$ Lipatov Kernels

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