2026-06-08T01:00:34Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/60342024-09-04T16:34:13Zcom_20.500.14352_14col_20.500.14352_15

Peláez Sagredo, José Ramón Rodas Bilbao, Arkaitz Ruiz De Elvira Carrascal, Jacobo 2023-06-16T15:15:49Z 2023-06-16T15:15:49Z 2019-12 1434-6044 10.1140/epjc/s10052-019-7509-6 https://hdl.handle.net/20.500.14352/6034 http://dx.doi.org/10.1140/epjc/s10052-019-7509-6 https://link.springer.com/ We provide global parameterizations of pi pi -> pi pi 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 pi pi -> pi pi, both in the real axis up to 1.12 GeV and in the complex plane within their applicability region, while also fulfilling forward dispersion relations up to 1.43 GeV. 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 sigma/f(0)(500), f(0)(980) and rho(770) pole parameters. eng https://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España Global parameterization of pi pi scattering up to 2 GeV journal article