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

Abstract

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.

Authors:
 [1];  [2];  [3];  [4]
  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))
Publication Date:
OSTI Identifier:
7239093
DOE Contract Number:  
AC02-76ER03069; FG06-88ER40427
Resource Type:
Journal Article
Journal Name:
Physical Review, D (Particles Fields); (United States)
Additional Journal Information:
Journal Volume: 49:11; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HADRONS; PARTICLE STRUCTURE; INSTANTONS; QUANTUM CHROMODYNAMICS; BOUND STATE; CORRELATION FUNCTIONS; FLUCTUATIONS; GLUONS; LATTICE FIELD THEORY; VACUUM STATES; BOSONS; ELEMENTARY PARTICLES; FIELD THEORIES; FUNCTIONS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUASI PARTICLES; VARIATIONS; 662230* - Quantum Chromodynamics- (1992-)

Citation Formats

Chu, M., Grandy, J.M., Huang, S., and Negele, J.W. Evidence for the role of instantons in hadron structure from lattice QCD. United States: N. p., 1994. Web. doi:10.1103/PhysRevD.49.6039.
Chu, M., Grandy, J.M., Huang, S., & Negele, J.W. Evidence for the role of instantons in hadron structure from lattice QCD. United States. doi:10.1103/PhysRevD.49.6039.
Chu, M., Grandy, J.M., Huang, S., and Negele, J.W. Wed . "Evidence for the role of instantons in hadron structure from lattice QCD". United States. doi:10.1103/PhysRevD.49.6039.
@article{osti_7239093,
title = {Evidence for the role of instantons in hadron structure from lattice QCD},
author = {Chu, M. and Grandy, J.M. and Huang, S. and Negele, J.W.},
abstractNote = {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.},
doi = {10.1103/PhysRevD.49.6039},
journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 49:11,
place = {United States},
year = {1994},
month = {6}
}