2026-06-08T02:38:41Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/60342024-09-04T16:34:13Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Peláez Sagredo, José Ramón
author
Rodas Bilbao, Arkaitz
author
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
Atribución 3.0 España
Global parameterization of pi pi scattering up to 2 GeV
journal article
URL
https://docta.ucm.es/bitstreams/149010b3-ee56-40f9-821c-acf27349bf83/download
File
MD5
8b2fd21f4d50f06d66c5de011891e6f5
1539383
application/pdf
pelaezsagredo136libre+CC.pdf