Chiral Symmetry Restoration in QCD

  • Edward Shuryak

Abstract

One of the central problems of modern physics is to understand the structure of the QCD ground state, the “QCD vacuum”. It is as a kind of a dense matter, composed of gauge and quark fields, interacting in a complicated non-perturbative way. Theorists working in the field use different approaches: (i) lattice gauge theory (LGT); (ii) QCD sum rules, based on the Operator Product Expansion (OPE);(iii) models of the QCD vacuum (e.g. the instanton-based ones, to be emphasized below);(iv) effective theories (chiral Lagrangians, etc); (v) various models of quark-quark interactions (potential quark models, NJL, bag models etc.). A common ground for the comparison of their results are the so called QCD correlation functions, see recent review [1].

Keywords

Dirac Operator Chiral Symmetry Operator Product Expansion Chiral Condensate Quark Condensate 
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 Science+Business Media New York 1996

Authors and Affiliations

  • Edward Shuryak
    • 1
  1. 1.Physics DepartmentState University of New YorkStony BrookUSA

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