Dynamical symmetry breaking in the gauged Nambu-Jona-Lasinio model
| dc.creator | Reenders, Manuel | |
| dc.date | 1999-06-04 | |
| dc.date.accessioned | 2026-07-25T22:07:22Z | |
| dc.description | The mechanism of dynamical chiral symmetry breaking is studied in the Abelian version of the gauged Nambu-Jona-Lasinio model in four dimensions. The most interesting feature of the gauged Nambu-Jona-Lasinio model is the appearance of relevant (renormalizable) four-fermion interactions near a critical curve separating a chiral symmetric and a dynamically chiral symmetry broken phase. The first three chapters of the thesis are introductory. Chapter 4 is based on hep-th/9712123. In an attempt to go beyond standard mean field approximations for four-fermion interactions, the 1/N expansion is utilized in chapter 5. Within the 1/N expansion, where N is the number of fermion flavors, it is shown that the renormalization group beta function of the U(1) gauge coupling has ultra-violet stable fixed points for sufficiently large N. This implies that the gauged Nambu-Jona-Lasinio model is a rare example of a nontrivial nonasymptotically free gauge field theory in four dimensions. | |
| dc.description | Ph.D. Thesis, University of Groningen, 199 pages, figures included, LaTeX (BibTeX) | |
| dc.identifier | https://arxiv.org/abs/hep-th/9906034 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9906034 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/86019 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Dynamical symmetry breaking in the gauged Nambu-Jona-Lasinio model | |
| dc.type | text |