Covariant background field calculation of ultraviolet counterterms
| dc.creator | Filho, F. M. de Carvalho | |
| dc.date | 1996-05-28 | |
| dc.date.accessioned | 2026-07-07T04:22:07Z | |
| dc.date.available | 2026-07-07T04:22:07Z | |
| dc.description | Based on the covariant background field method, we calculate the ultraviolet counter\-terms up to two-loop order and discuss the renormalizability of the three-dimensional non-linear sigma models with arbitrary Riemannian manifolds as target spaces. We investigate the bosonic model and its supersymmetric extension. We show that at the one-loop level these models are renormalizable and even finite when the manifolds are Ricci-flat. However, at the two-loop order, we find non-renormalizable counterterms in all cases considered, so the renormalizability and finiteness of such models are completely lost in this order. | |
| dc.description | 17 pages, latex, 5 eps figures | |
| dc.identifier | https://arxiv.org/abs/hep-th/9605198 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9605198 | |
| dc.identifier | Z.Phys. C74 (1997) 185-190 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/54593 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Covariant background field calculation of ultraviolet counterterms | |
| dc.type | text |