On the Wess-Zumino term in high energy QCD

Abstract

Recently, Kovner and Lublinsky proposed new small-x QCD evolution equations valid when the gluon density inside the target is low. The key element of their construction is the Wess-Zumino term which ensures the non-commutativity of valence charges. In this paper we clarify the origin and significance of this term by showing that it can be naturally incorporated in the effective theory of Color Glass Condensate. We also reexamine the renormalization group description in the high density (JIMWLK) regime.

21 pages

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• One loop light-cone QCD, effective action for reggeized gluons and QCD RFT calculus
• The dimensionally reduced description of the high energy scattering and the effective action for the reggeized gluons
• S-matrix and productions amplitudes in high energy QCD
• CGC formalism with two sources
• Unifying approaches: derivation of Balitsky hierarchy from the Lipatov effective action
• On correlators of Reggeon fields and operators of Wilson lines in high energy QCD
• High energy scattering in Einstein-Cartan gravity
• On QCD RFT corrections to the propagator of reggeized gluons
• High-energy QCD evolution from BRST symmetry
• Tunneling through Color Glass Condensate and True Black Disks