The Vacuum Structure of Quantum Chromodynamics

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概要

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• The vacuum structure of quantum chromodynamics (QCD) is studied,with emphasis on massless QCD. An interacting gas of instantons is replaced by an ideal gas of effective instantons, which incorporate effects of new tunnelings. The existence of a critical value θ_c in the θ-vacua is shown. Chirally asymmetric vacua of massless QCD require two-parameter dependence, which allows dynamical quark mass generation. Chiral U(N)[○!×]U(N) symmetry is realized in the Goldstone mode at |θ|=θ_c. The U(1) Goldstone boson becomes massive for θ,|θ|<θ_c.

• 理論物理学刊行会の論文
• 1979-06-25

著者

• Ida Masakuni

  Research Institute For Fundamental Physics Kyoto University

関連論文

• Baryon Resonances and Lightlike Chiral Algebra
• The Vacuum Structure of Quantum Chromodynamics
• Classification of Baryons in an SU(3) Regge Scheme
• The Kinematical Structure of Lightlike Wave Functions. II : The Case of Baryons
• Dynamical Properties of the Vacuum in Quantum Chromodynamics
• The Kinematical Structure of Lightlike Wave Functions : The Case of Mesons
• Dynamical Quark Mass Generation and the Mean Instanton Density
• The Baryon Spectrum and Reflection Partners
• Hadron Resonances and Lightlike Chiral Algebra
• A Lightlike Formulation of the Quark Model
• Relativistic Motion of Massive Quarks Joined by a Massless String
• Quantization of Quark Fields on a Lightlike Plane
• A Left-Right Symmetric Gauge Model as an Extended Weinberg-Salam Theory
• A Dual Picture for Meson Resonances in Terms of Two Limiting Symmetries

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