Evidence for the role of instantons in hadron structure from lattice QCD

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.6039· OSTI ID:7239093

Chu, M ^[1]; Grandy, J M ^[2]; Huang, S ^[3]; Negele, J W ^[4]

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1. W. K. Kellogg Radiation Laboratory, Caltech 106-38, Pasadena, California 91125 (United States)
2. T-8 Group, MS B-285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
3. Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States) Center for Theoretical Physics, Laboratory for Nuclear Science, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
4. Center for Theoretical Physics, Laboratory for Nuclear Science Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Cooling is used as a filter on a set of gluon fields sampling the Wilson action to selectively remove essentially all fluctuations of the gluon field except for the instantons. The close agreement between quenched lattice QCD results with cooled and uncooled configurations for vacuum correlation functions of hadronic currents and for density-density correlation functions in hadronic bound states provides strong evidence for the dominant role of instantons in determining light hadron structure and quark propagation in the QCD vacuum.

• DOE Contract Number: AC02-76ER03069; FG06-88ER40427
• OSTI ID: 7239093
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:11; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOUND STATE
CORRELATION FUNCTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
FLUCTUATIONS
FUNCTIONS
GLUONS
HADRONS
INSTANTONS
LATTICE FIELD THEORY
PARTICLE STRUCTURE
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUASI PARTICLES
VACUUM STATES
VARIATIONS