Effective Field Theory of the Linear $O(N)$ Sigma Model
| dc.creator | Nyffeler, A. | |
| dc.creator | Schenk, A. | |
| dc.date | 1994-09-29 | |
| dc.date.accessioned | 2026-07-07T11:47:42Z | |
| dc.date.available | 2026-07-07T11:47:42Z | |
| dc.description | The low energy structure of a theory containing light and heavy particle species which are separated by a mass gap can adequately be described by an effective theory which contains only the light particles. In this work we present a thorough analysis of the effective field theory of the linear $O(N)$ sigma model in the spontaneously broken phase. In particular, we present a detailed discussion of two techniques, a short-distance expansion and a method based on loop-integrals, which can be used to explicitly evaluate the functional relationships between the low energy constants of the effective theory and the parameters of the underlying theory. We furthermore provide a detailed analysis of the matching relation between the linear sigma model and its effective theory, in order to clarify some discrepancies which can be found in the literature. | |
| dc.description | 42 pages, LaTeX, BUTP-94/12, HUTP-94/A012, to appear in Ann. Phys | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9409436 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9409436 | |
| dc.identifier | Ann.Phys.241:301-336,1995 | |
| dc.identifier | doi:10.1006/aphy.1995.1065 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202664 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Effective Field Theory of the Linear $O(N)$ Sigma Model | |
| dc.type | text |