1997/05/02 by C. Becchi, Becchi, C. · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum and Classical Electrodynamics #Relativity and Gravitational Theory #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9705211
28 pages, LateX, Lectures given at the Triangle Graduate School 96, Charles University, Prague September 2-11, 1996
arxiv created 1997/05/02 · openalex publication_date 1997/05/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
These lectures present an elementary introduction to quantum gauge fields. The first aim is to show how, in the tree approximation, gauge invariance follows from covariance and unitarity. This leads to the standard construction of the Lagrangian by means of covariant derivatives in a form that unifies the massive and the massless case. Having so identified the classical theory, the Faddeev-Popov quantization method is introduced and the BRS invariance of the resulting action is discussed.