QUARK CONTRIBUTION TO THE REGGEON-REGGEON-GLUON VERTEX IN QCD

Authors
FADIN V FIORE R QUARTAROLO A
Citation
V. Fadin et al., QUARK CONTRIBUTION TO THE REGGEON-REGGEON-GLUON VERTEX IN QCD, Physical review. D. Particles and fields, 50(9), 1994, pp. 5893-5901
Citations number
11
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
50
Issue
9
Year of publication
1994
Pages
5893 - 5901
Database
ISI
SICI code
0556-2821(1994)50:9<5893:QCTTRV>2.0.ZU;2-O
Abstract
The quark loop contribution to the Reggeon-Reggeon-gluon vertex is cal culated in QCD, where the Reggeon is the Reggeized gluon. Compared wit h the vertex in the Born approximation, this contribution exhibits a n ew spin structure as well as the gluon loop one. A remarkable but not complete cancellation between gluon and quark contributions to this ne w spin structure takes place for the case of three massless quark flav ors.