Work

Quantum gauge models without (classical) Higgs mechanism

Year: 2010

Type: article

Abstract: We examine the status of massive gauge theories, such as those usually obtained by spontaneous symmetry breakdown, from the viewpoint of causal (Epstein–Glaser) renormalization. The BRST formulation of gauge invariance in this framework, starting from canonical quantization of massive (as well as massless) vector bosons as fundamental entities, and proceeding perturbatively, allows one to rederive the reductive group symmetry of interactions, the need for scalar fields in gauge theory, and the covariant derivative. Thus the presence of higgs particles is understood without recourse to a Higgs(–Englert–Brout–Guralnik–Hagen–Kibble) mechanism. Along the way, we dispel doubts about the compatibility of causal gauge invariance with grand unified theories.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-010-1432-1

Authors: Michael Dütsch, José M. Gracia-Bondía, Florian Scheck, Joseph C. Várilly

Institutions: University of Göttingen, Universidad de Zaragoza, Johannes Gutenberg University Mainz, Universidad de Costa Rica

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid:

Funders: Deutsche Forschungsgemeinschaft, Georg-August-Universität Göttingen, Universidad de Costa Rica