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Global parameterization of [Formula: see text] scattering up to 2 [Formula: see text]

We provide global parameterizations of [Formula: see text] scattering S0 and P partial waves up to roughly 2 GeV for phenomenological use. These parameterizations describe the output and uncertainties of previous partial-wave dispersive analyses of [Formula: see text] , both in the real axis up to 1...

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Detalles Bibliográficos
Autores principales: Pelaez, J. R., Rodas, A., Ruiz de Elvira, J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6913136/
https://www.ncbi.nlm.nih.gov/pubmed/31885492
http://dx.doi.org/10.1140/epjc/s10052-019-7509-6
Descripción
Sumario:We provide global parameterizations of [Formula: see text] scattering S0 and P partial waves up to roughly 2 GeV for phenomenological use. These parameterizations describe the output and uncertainties of previous partial-wave dispersive analyses of [Formula: see text] , both in the real axis up to 1.12 [Formula: see text] and in the complex plane within their applicability region, while also fulfilling forward dispersion relations up to 1.43 [Formula: see text] . Above that energy we just describe the available experimental data. Moreover, the analytic continuations of these global parameterizations also describe accurately the dispersive determinations of the [Formula: see text] , [Formula: see text] and [Formula: see text] pole parameters.