# $\rho\rho$ scattering revisited with coupled-channels of pseudoscalar mesons

## TL;DR

This paper reexamines $
ho
ho$ scattering by including coupled channels of pseudoscalar mesons, revealing that the resulting scalar meson properties align more closely with experimental data, especially for $f_0(1500)$.

## Contribution

It introduces the coupled-channel effects of pseudoscalar mesons into $
ho
ho$ scattering analysis, refining the understanding of the scalar meson spectrum.

## Key findings

- Pole positions are closer to PDG values for $f_0(1500)$ with coupled channels.
- Partial decay widths better match experimental data.
- Coupled-channel effects significantly influence scalar meson properties.

## Abstract

The $\rho\rho$ scattering has been studied by two groups which both claimed a dynamical generated scalar meson, most likely to be $f_0(1370)$. Here we investigate the influence of coupled-channels of pseudoscalar mesons, i.e., $\pi\pi$ and $\bar KK$, on this dynamical generated scalar state. With the coupled channel effect included, the pole and partial decay widths are found to be more close to PDG values for $f_0(1500)$.