Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-08-29
Rev.Math.Phys. 15 (2003) 491
Physics
High Energy Physics
High Energy Physics - Theory
107 pages. v3: Introduction extended, references added and minor improvements. A version shortened in sect. 2.5 and chapt. 4 a
Scientific paper
10.1142/S0129055X03001692
In this article a self-contained exposition of proving perturbative renormalizability of a quantum field theory based on an adaption of Wilson's differential renormalization group equation to perturbation theory is given. The topics treated include the spontaneously broken SU(2) Yang-Mills theory. Although mainly a coherent but selective review, the article contains also some simplifications and extensions with respect to the literature. In the original version of this review the spontaneously broken Yang-Mills theory, dealt with in Chapter 4, followed Comm. Math. Phys. 209, 477 (2000) . Recently, however, the authors of this article discovered a serious deficiency in their method to restore the Slavnov-Taylor identities (intermediately violated by the regularization), which invalidates their claim. Now in Rev. Math. Phys. 21, 781 (2009) these authors have developed a new approach to accomplish the missing restoration of the Slavnov-Taylor identities. The present revised review concerns solely Chapter 4: the original Sections 4.1-4.3 are essentially unaltered, whereas the former Section 4.4, now obsolete, has been replaced by the new Sections 4.4-4.6, following the recent Rev. Math. Phys. article.
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