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

Journal Article · Tue Nov 01 04:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.5893· OSTI ID:6963026

Fadin, V ^[1]; Fiore, R; Quartarolo, A ^[2]

---

1. Budker Institute for Nuclear Physics and Novosibirsk State University, 630090 Novosibirsk (Russian Federation)
2. Dipartimento di Fisica, Universita della Calabria and Istituto Nazionale di Fisica Nucleare, Gruppo collegato di Cosenza, Arcavacata di Rende, I-87036 Cosenza (Italy)

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 flavors.

• OSTI ID: 6963026
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BORN APPROXIMATION
BOSONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
GLUONS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
REGGE POLES
SPIN
VERTEX FUNCTIONS