QUANTUM CHROMODYNAMICS
Abstract
These lectures provide an overview of Quantum Chromodynamics (QCD), the SU(3)C gauge theory of the strong interactions. After briefly reviewing the empirical considerations which lead to the introduction of colour, the QCD Lagrangian is discussed. The running of the strong coupling and the associated property of Asymptotic Freedom are analyzed. Some selected experimental tests and the present knowledge of αs are summarized. A short description of the QCD flavour symmetries and the dynamical breaking of chiral symmetry is also given.
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