The Scalars f0(980) and a0(980) as Hadronic Molecules

TL;DR

This paper investigates whether certain scalar mesons are hadronic molecules, using radiative decay data and extending the analysis to charm-strange mesons to explore their possible molecular structures.

Contribution

It introduces a formalism to analyze the molecular nature of scalar mesons and applies it to both light and heavy mesons, including charm-strange states.

Findings

f0(980) and a0(980) likely have a molecular K barK structure

The formalism extends to charm-strange mesons Ds0*(2317) and Ds1(2460)

Weak decays with f0(980) in the final state support the molecular interpretation

Abstract

We discuss the hadronic molecule issue in the light and heavy meson sector. Thereby we use the radiative decays of the scalars f0(980) and a0(980) to study its possible molecular K barK structure. Further on we extend our formalism to mesons with open charm and strangeness, Ds0*(2317) and Ds1(2460), whose hadronic molecule interpretation is analyzed in weak decays with f0(980) in the final state.