Light hadron physics from the lattice

  • J. W. Negele
Part II Other Approaches to QCD
Part of the Lecture Notes in Physics book series (LNP, volume 452)


Two aspects of chiral dynamics are explored using lattice QCD. The first is calculation of low-energy hadronic parameters and a brief survey of recent lattice results is presented, including meson decay constants, the quark condensate, pion and nucleon scattering lengths and the nucleon σ-term. The second is a demonstration of the dominant role of instantons in determining light hadron structure and quark propagation in the QCD vacuum. The instanton content of gluon fields sampling the Wilson action is extracted using cooling as a filter to selectively remove essentially all fluctuations of the gluon field except for instantons. Close agreement is demonstrated between quenched lattice QCD results including all gluonic contributions and including only instantons for vacuum correlation functions of hadronic currents and for density-density correlation functions in hadronic bound states.


Correlation Function Topological Charge Cooling Step Wilson Fermion Quark Propagation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • J. W. Negele
    • 1
  1. 1.Center for Theoretical Physics Laboratory for Nuclear Science, and Department of PhysicsMassachusetts Institute of TechnologyCambridge

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