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arXiv · hep-th/9405127

Quark contribution to the reggeon-reggeon-gluon vertex in QCD

V. S. Fadin·R. Fiore·A. Quartarolo
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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.

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V. S. Fadin, R. Fiore, A. Quartarolo. 1994-05-19. Quark contribution to the reggeon-reggeon-gluon vertex in QCD. https://doi.org/10.1103/physrevd.50.5893

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