Instanton-induced effects in QCD high-energy scattering

Journal Article · Sun Oct 15 00:00:00 EDT 2000 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.62.085014· OSTI ID:40205156

Shuryak, Edward; Zahed, Ismail

We evaluate a number of new instanton-induced phenomena in QCD, starting with static dipole-dipole potentials, and proceeding to quark-quark and dipole-dipole scattering at high energy. We use a nonperturbative formulation of the scattering amplitude in terms of a correlator of two Wilson lines (quarks) or Wilson loops (dipoles) and analyze the Euclidean amplitudes with both perturbative gluons and instantons. The results are analytically continued to Minkowski geometry by interpreting the angle between the Wilson lines as rapidity. We discuss the relevance of our results for the phenomenology of near-forward hadronic processes at high energy, especially for processes with multiple color exchanges.

• Sponsoring Organization: (US)
• OSTI ID: 40205156
• Journal Information: Physical Review D, Vol. 62, Issue 8; Other Information: DOI: 10.1103/PhysRevD.62.085014; Othernumber: PRVDAQ000062000008085014000001; 027020PRD; PBD: 15 Oct 2000; ISSN 0556-2821
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
COLOR
DIPOLES
GEOMETRY
GLUONS
INSTANTONS
QUANTUM CHROMODYNAMICS
QUARKS
SCATTERING
SCATTERING AMPLITUDES
WILSON LOOP