On the application of the effective action approach to amplitudes with reggeon splitting

Abstract

Application of the effective action approach to amplitudes with loop integration is studied for collisions on two and three centers with possible gluon emission. A rule is formulated for the integration around pole singularities in the induced vertices which brings the results in agreement with the QCD. It is demonstrated that the amplitudes can be restored from the purely transverse picture by introducing the standard Feynman propagators for intermediate gluons and quarks.

16 pages, 9 figures; submitted to Eur.Phys.Jour. C

References in corpus (6)

• Gluon Regge trajectory at two loops from Lipatov's high energy effective action
• The Reggeon $\to$ 2 Reggeons $+$ Particle vertex in the Lipatov effective action formalism
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Cited by in corpus (2)

• The Color Glass Condensate formalism, Balitsky-JIMWLK evolution and Lipatov's high energy effective action
• NNLO classical solution for Lipatov's effective action for reggeized gluons