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Finite energy instantons in the O(3) non-linear sigma model
We consider winding number transitions in the two dimensional O(3) non-linear sigma model, modified by a suitable conformal symmetry breaking term. We discuss the general properties of the relevant instanton solutions which dominate the transition amplitudes at finite energy, and find the solutions...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1996
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/268208 |