Gluon emission at small longitudinal momenta in the QCD effective action approach
High Energy Physics - Phenomenology
2019-05-22 v3
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. Contribution from this kinematical region is studied for double and 2x2 elementary collisions inside the composite projectile and target.
Keywords
Cite
@article{arxiv.1901.08844,
title = {Gluon emission at small longitudinal momenta in the QCD effective action approach},
author = {M. A. Braun and M. I. Vyazovsky},
journal= {arXiv preprint arXiv:1901.08844},
year = {2019}
}
Comments
20 pages, 13 figures; to be published in Eur.Phys.Jour. C