Quarkonium interactions with (hot) hadronic matter

TL;DR

This paper investigates how quarkonia interact with hot hadronic matter using chiral effective theories, calculating scattering cross-sections and incorporating finite-temperature effects for both charmonium and bottomonium states.

Contribution

It extends previous work by computing cross-sections for $mbda$ scattering with light mesons and includes finite-temperature effects in unitarized scattering amplitudes.

Findings

Calculated cross-sections for $mbda$ scattering with light mesons.

Included finite-temperature effects in quarkonium and bottomonium interactions.

Compared results with existing literature.

Abstract

In this work, we present an updated study about the interactions of quarkonia with surrounding hadronic medium. The meson-meson interactions are described with a chiral effective Lagrangian within the framework of unitarized coupled channel amplitudes. In particular, we extend a previous work performed in the charmonium sector by calculating the cross-sections for $\Upsilon$ scattering by light pseudoscalar mesons ($\pi, K, \eta$) and vector mesons ($\rho, K^\ast, \omega$). We evaluate the relevant channels and compare the results with existing literature. The analysis is completed by including the finite-temperature effects in the unitarized scattering amplitudes for both quarkonium and bottomonium sectors.