https://doi.org/10.1140/epjc/s10052-019-7509-6
Regular Article - Theoretical Physics
Global parameterization of 
scattering up to 2 
1
Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid, 28040, Madrid, Spain
2
Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012, Bern, Switzerland
* e-mail: elvira@itp.unibe.ch
Received:
6
August
2019
Accepted:
25
November
2019
Published online:
13
December
2019
We provide global parameterizations of 
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 , both in the real axis up to 1.12 and in the complex plane within their applicability region, while also fulfilling forward dispersion relations up to 1.43 . 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 
, 
and 
pole parameters.
© The Author(s), 2019
