| hep-ph/9505231 (May 1995) | | QUANTUM CHROMODYNAMICS | | A. Pich | | Received. 04 May 1995 Last updated. 04 May 1995 | | 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 {it colour}, the QCD Lagrangian is discussed. The running of the strong coupling and the associated property of {it Asymptotic Freedom} are analyzed. Some selected experimental tests and the present knowledge of $alpha_s$ are summarized. A short description of the QCD flavour symmetries and the {it dynamical breaking of chiral symmetry} is also given. | | Categories. hep-ph | | Comment. LaTeX, 51 pages, 32 figures (included in separate .uu file) Lectures at the 1994 European School of High-Energy Physics (Sorrento, 1994) | | Report No. FTUV/95-19; IFIC/95-19 |
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