| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000408632 |
| ISSN: | 0103-9733 |
| Authors: | Dudal, D1 Gracey, J.A2 Lemes, V.E.R3 Sarandy, M.S4 Sobreiro, R.F3 Sorella, S.P3 Verschelde, H1 |
| Institutions: | 1Ghent University, Department of Mathematical Physics and Astronomy, Gante. Bélgica 2University of Liverpool, Department of Mathematical Sciences, Liverpool, Lancashire. Reino Unido 3Universidade do Estado do Rio de Janeiro, Rio de Janeiro. Brasil 4University of Toronto, Department of Chemistry, Toronto, Ontario. Canadá |
| Year: | 2007 |
| Season: | Jun |
| Volumen: | 37 |
| Number: | 2A |
| Pages: | 406-418 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | We investigate a dynamical mass generation mechanism for the off-diagonal gluons and ghosts in SU(N) Yang-Mills theories, quantized in the maximal Abelian gauge. Such a mass can be seen as evidence for the Abelian dominance in that gauge. It originates from the condensation of a mixed gluon-ghost operator of mass dimension two, which lowers the vacuum energy. We construct an effective potential for this operator by a combined use of the local composite operators technique with algebraic renormalization and we discuss the gauge parameter independence of the results. We also show that it is possible to connect the vacuum energy, due to the mass dimension two condensate discussed here, with the non-trivial vacuum energy originating from the condensate <Aµ(Sup 2)> , which has attracted much attention in the Landau gauge |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Física de partículas y campos cuánticos, Teoría cuántica de campos, Teorías de Gauge |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Physics, Quantum field theory, Gauge theories |
| Full text: | Texto completo (Ver PDF) |
