Published June 1, 1994 | Version v1
Journal article Metadata-only

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

Creators

  • 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. Center for Theoretical Physics, Laboratory for Nuclear Science, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  • 4. Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)
  • 5. Center for Theoretical Physics, Laboratory for Nuclear Science Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Description

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

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
49
Journal Issue
11
Journal Page Range
p. 6039-6050.
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25059906
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BOUND STATE; CORRELATION FUNCTIONS; FLUCTUATIONS; GLUONS; HADRONS; INSTANTONS; LATTICE FIELD THEORY; PARTICLE STRUCTURE; QUANTUM CHROMODYNAMICS; VACUUM STATES
Descriptors DEC
BOSONS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FIELD THEORIES; FUNCTIONS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUASI PARTICLES; VARIATIONS