Quark contribution to the reggeon-reggeon-gluon vertex in QCD
High Energy Physics - Theory
2019-08-17 v1 High Energy Physics - Phenomenology
Abstract
The quark loop contribution to the reggeon-reggeon-gluon vertex is calculated in QCD, where the reggeon is the reggeized gluon. Compared with the vertex in the Born approximation, this contribution exhibits a new spin structure as well as the gluon loop one. A remarkable but not complete cancellation between gluon and quark contributions to this new spin structure takes place for the case of three massless quark flavours.
Keywords
Cite
@article{arxiv.hep-th/9405127,
title = {Quark contribution to the reggeon-reggeon-gluon vertex in QCD},
author = {V. S. Fadin and R. Fiore and A. Quartarolo},
journal= {arXiv preprint arXiv:hep-th/9405127},
year = {2019}
}
Comments
19 pages + 2 figures(appended as a postscript file), Latex