Consistency checks of different ππ scattering data sets using forward dispersion relations

We review our evaluation of forward dispersion relations for direct fits to the different, and often conflicting, ππ scattering experimental analyses. We find that some of the most commonly used data sets do not satisfy these constraints by several standard deviations. We also provide a consistent π...

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Detalles Bibliográficos
Autor: Peláez Sagredo, José Ramón
Tipo de recurso: capítulo de libro
Fecha de publicación:2006
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/53485
Acceso en línea:https://hdl.handle.net/20.500.14352/53485
Access Level:acceso abierto
Palabra clave:51-73
Total cross-sections
Phase-shift analysis
Gev-c
Parameters
π&π
Física-Modelos matemáticos
Física matemática
Descripción
Sumario:We review our evaluation of forward dispersion relations for direct fits to the different, and often conflicting, ππ scattering experimental analyses. We find that some of the most commonly used data sets do not satisfy these constraints by several standard deviations. We also provide a consistent ππ amplitude by improving a global fit to data with these dispersion relations.