J. Ruiz de Elvira

activity

20202024

π π

scattering with dispersive constraints: Beyond the S0 wave

13 citations · 13 across the 1 of their papers we have counts for

collaborators

3 papers

hep-ph2024★ 13 cited

Global parametrizations of $π π$ scattering with dispersive constraints: Beyond the S0 wave

J. R. Peláez, P. Rabán, J. Ruiz de Elvira

We provide new global parametrizations of $π π \to π π$ scattering for the S2, P, D, F, and G partial waves up to at least 1.8 GeV, easy to implement for phenomenological use. With ea…

hep-ph2021

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances $σ / f_{0} (500)$ and $κ / K_{0}^{*} (700)$

J. R. Peláez, A. Rodas, J. Ruiz de Elvira

For several decades, the $σ / f_{0} (500)$ and $κ / K_{0}^{*} (700)$ resonances have been subject to long-standing debate. Both their existence and properties were controversial until very rec…

hep-ph2020

Two-loop analysis of the pion-mass dependence of the $ρ$ meson

Malwin Niehus, Martin Hoferichter, Bastian Kubis +1

Analyzing the pion-mass dependence of $π π$ scattering phase shifts beyond the low-energy region requires the unitarization of the amplitudes from chiral perturbation theory. In the…

Global parametrizations of ππ scattering with dispersive constraints: Beyond the S0 wave

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances σ/f0​(500) and κ/K0∗​(700)

Two-loop analysis of the pion-mass dependence of the ρ meson

Global parametrizations of $π π$ scattering with dispersive constraints: Beyond the S0 wave

Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances $σ / f_{0} (500)$ and $κ / K_{0}^{*} (700)$

Two-loop analysis of the pion-mass dependence of the $ρ$ meson