Gluon emission at small longitudinal momenta in the QCD effective action approach

Research outputpeer-review

Abstract

In the framework of the QCD effective action the vertices of gluon emission in interaction of reggeons are studied in the limit of small longitudinal momenta of the emitted gluon. It is found that the vertices drastically simplify in this limit, so that the gluon becomes emitted from a single reggeon coupled to the projectile and target via multireggeon vertices. The contribution from this kinematical region is studied for double and 2 × 2 elementary collisions inside the composite projectile and target.

Original languageEnglish
Article number392
Number of pages14
JournalEuropean Physical Journal C
Volume79
Issue number5
DOIs
Publication statusPublished - 1 May 2019

Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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