Properties of the Scalar Mesons below 1.0 GeV as Hadronic Molecules

TL;DR

This paper investigates scalar mesons below 1.0 GeV as hadronic molecules, calculating their decay and production properties using an effective Lagrangian approach, and discusses the challenges in classifying them as a nonet.

Contribution

It provides a detailed analysis of scalar mesons as hadronic molecules and compares theoretical predictions with experimental data.

Findings

Difficulty in classifying all scalar mesons in the same nonet

Calculated leptonic and strong decay widths

Produced mesons via $$ radiative decays

Abstract

Properties of scalar mesons below 1.0 GeV have been studied by regarding them as hadronic molecular states. Using the effective Lagrangian approach, we have calculated their leptonic decays, strong decays and productions via the $\phi$ meson radiative decays. Comparing our results with that given in the literature and the data, we conclude that it is difficult to arrange them in the same nonet if some of them are pure hadronic molecules.