Global fit of pi-pi and pi-K elastic-scattering in chiral perturbation-theory with dispersion-relations
We apply the one-loop results of the SU(3)L X SU(3)R chiral perturbation theory supplemented with the inverse-amplitude method to fit the available experimental data on pipi and piK scattering. With essentially only three parameters we describe accurately data corresponding to six different channels...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1993 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/58750 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/58750 |
| Access Level: | acceso abierto |
| Palabra clave: | 53 Symmetry-Breaking Sector Weak-Interactions One Loop Ww Scattering Form-Factors Gev-C Lagrangians Resonances Expansion Threshold Física (Física) 22 Física |
| Sumario: | We apply the one-loop results of the SU(3)L X SU(3)R chiral perturbation theory supplemented with the inverse-amplitude method to fit the available experimental data on pipi and piK scattering. With essentially only three parameters we describe accurately data corresponding to six different channels: namely, (I,J) = (0,0), (2,0), (1,1), (1/2, 0), (3/2, 0), and (1/2, 1). In addition we reproduce the first resonances of the (1, 1) and (1/2, 1) channel with the right mass corresponding to the rho and the K* (892) particles. |
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