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Title: Correlation functions of hadron currents in the QCD vacuum calculated in lattice QCD

Abstract

Point-to-point vacuum correlation functions for spatially separated hadron currents are calculated in quenched lattice QCD on a 16[sup 3][times]24 lattice with 6/[ital g][sup 2]=5.7. The lattice data are analyzed in terms of dispersion relations, which enable us to extract physical information from small distances where asymptotic freedom is apparent to large distances where the hadronic resonances dominate. In the pseudoscalar, vector, and axial vector channels where experimental data or phenomenological information are available, semiquantitative agreement is obtained. In the nucleon and [Delta] channels, where no experimental data exist, our lattice data complement experiments. Comparison with approximations based on sum rules and interacting instantons are made, and technical details of the lattice calculation are described.

Authors:
 [1];  [2];  [3];  [4]
  1. (W.K. Kellogg Radiation Laboratory, California Institute of Technology, 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))
  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:
6216912
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: 48:7; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LATTICE FIELD THEORY; VACUUM STATES; QUANTUM CHROMODYNAMICS; CORRELATION FUNCTIONS; COMPUTERIZED SIMULATION; DISPERSION RELATIONS; EXPERIMENTAL DATA; INSTANTONS; SUM RULES; DATA; EQUATIONS; FIELD THEORIES; FUNCTIONS; INFORMATION; NUMERICAL DATA; QUANTUM FIELD THEORY; QUASI PARTICLES; SIMULATION; 662230* - Quantum Chromodynamics- (1992-)

Citation Formats

Chu, M., Grandy, J.M., Huang, S., and Negele, J.W.. Correlation functions of hadron currents in the QCD vacuum calculated in lattice QCD. United States: N. p., 1993. Web. doi:10.1103/PhysRevD.48.3340.
Chu, M., Grandy, J.M., Huang, S., & Negele, J.W.. Correlation functions of hadron currents in the QCD vacuum calculated in lattice QCD. United States. doi:10.1103/PhysRevD.48.3340.
Chu, M., Grandy, J.M., Huang, S., and Negele, J.W.. Fri . "Correlation functions of hadron currents in the QCD vacuum calculated in lattice QCD". United States. doi:10.1103/PhysRevD.48.3340.
@article{osti_6216912,
title = {Correlation functions of hadron currents in the QCD vacuum calculated in lattice QCD},
author = {Chu, M. and Grandy, J.M. and Huang, S. and Negele, J.W.},
abstractNote = {Point-to-point vacuum correlation functions for spatially separated hadron currents are calculated in quenched lattice QCD on a 16[sup 3][times]24 lattice with 6/[ital g][sup 2]=5.7. The lattice data are analyzed in terms of dispersion relations, which enable us to extract physical information from small distances where asymptotic freedom is apparent to large distances where the hadronic resonances dominate. In the pseudoscalar, vector, and axial vector channels where experimental data or phenomenological information are available, semiquantitative agreement is obtained. In the nucleon and [Delta] channels, where no experimental data exist, our lattice data complement experiments. Comparison with approximations based on sum rules and interacting instantons are made, and technical details of the lattice calculation are described.},
doi = {10.1103/PhysRevD.48.3340},
journal = {Physical Review, D (Particles Fields); (United States)},
issn = {0556-2821},
number = ,
volume = 48:7,
place = {United States},
year = {1993},
month = {10}
}