P. Rabán

collaborators

4 papers

hep-ph2026

Poles in $π N$ scattering from forward dispersion relations and revised total cross-section data

José Ramón Peláez, Pablo Rabán, Jacobo Ruiz de Elvira

We present a model-independent calculation of $π N$ forward dispersion relations and their analytic continuation to the complex plane, using a revised set of $π^{\pm} p$ total cross-s…

hep-ph2026

The unintuitive SU(3) flavor and chiral limits of hadron resonances

JosÃ© RamÃ³n PelÃ¡ez, Pablo RabÃ¡n, Jacobo Ruiz de Elvira

Contrary to naive expectations, poles used to define hadron resonances rigorously in the physical world may not evolve continuously to become degenerate in the SU(3) $_{F}$ and chiral…

hep-ph2026

Dispersive determination of resonances from $I ¨ I ¨ $ scattering data

We provide a precise, model- and parametrization-independent dispersive determination of the $f_{0} (500)$ , $I ¨ (770)$ , $f_{0} (980)$ , $f_{2} (1270)$ , $f_{0} (1370)$ , $I ¨ (1450)$ , $f_{0} (1500)$ , a…

hep-ph2025

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

J. R. PelÃ¡ez, P. RabÃ¡n, J. Ruiz de Elvira

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

Poles in πN scattering from forward dispersion relations and revised total cross-section data

The unintuitive SU(3) flavor and chiral limits of hadron resonances

Dispersive determination of resonances from I¨I¨ scattering data

Global parametrizations of I¨I¨ scattering with dispersive constraints: Beyond the S0 wave

Poles in $π N$ scattering from forward dispersion relations and revised total cross-section data

Dispersive determination of resonances from $I ¨ I ¨ $ scattering data

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