Regular Article - Theoretical Physics
On the application of the effective action approach to amplitudes with reggeon splitting
Saint-Petersburg State University, St. Petersburg, Russia
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Accepted: 19 July 2014
Published online: 7 August 2014
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.
© SIF and Springer-Verlag Berlin Heidelberg, 2014