Hadron-hadron collisions at extreme energies: Light-cone QCD with an axial-vector anomaly current and an infrared fixed point

Journal Article · Sun Apr 01 00:00:00 EST 1984 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.29.1435· OSTI ID:7186349

White, A R

We argue that QCD with the maximum number of fermions allowed by asymptotic freedom provides a ''parton-model'' description of soft high-energy collisions. That is, infinite-momentum quantization can be based on the perturbative vacuum and yet produce confinement and chiral-symmetry breaking. A first-stage infrared construction gives SU(2) gauge invariance and confinement. An infrared fixed point produces transverse momentum scaling and associated infrared divergences which couple to an anomaly-current component of a Fock-space wave function. The divergences factor on to color-zero states allowing the wave function zeros needed by transverse gauge invariance. Parton interactions are dominated by fermion-loop anomalies coupled to the divergences. As a result a pion has a vector valence-quark component. The infrared limit giving SU(3) gauge invariance is argued to be accompanied by critical-Pomeron high-energy behavior and spontaneous chiral-symmetry breaking, but is only briefly discussed in this paper.

• Research Organization: High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 7186349
• Journal Information: Phys. Rev. D; (United States), Vol. 29:7
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HADRON-HADRON INTERACTIONS
QUANTUM CHROMODYNAMICS
INFRARED DIVERGENCES
AXIAL-VECTOR CURRENTS
CHIRAL SYMMETRY
GAUGE INVARIANCE
LIGHT CONE
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
TRANSVERSE MOMENTUM
WAVE FUNCTIONS
ALGEBRAIC CURRENTS
CURRENTS
FIELD THEORIES
FUNCTIONS
INTERACTIONS
INVARIANCE PRINCIPLES
LIE GROUPS
LINEAR MOMENTUM
PARTICLE INTERACTIONS
QUANTUM FIELD THEORY
SPACE-TIME
SU GROUPS
SYMMETRY
SYMMETRY GROUPS
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
645400 - High Energy Physics- Field Theory