Multichannel Description of Light and Intermediate Scalar Mesons

TL;DR

This paper reviews light scalar mesons and introduces a multichannel model extended to higher energies, enabling predictions for intermediate scalar mesons and discussing future improvements in the theoretical description.

Contribution

It presents an extended multichannel modeling approach for scalar mesons, incorporating additional decay channels and higher energies for improved predictions.

Findings

Predictions for intermediate scalar mesons made with the extended model

Enhanced understanding of scalar meson spectrum and decay channels

Discussion of prospects for further theoretical refinements

Abstract

The light scalar mesons in a variety of approaches are briefly reviewed, as well as their description in the Resonance-Spectrum Expansion and related coupled-channel formalisms. A recent multichannel modelling of the light scalars is extended to higher energies and with additional decay channels, allowing to make predictions for the intermediate scalar mesons as well. Prospects for further improvements are discussed. PACS numbers: 14.40.Cs, 14.40.Ev, 11.80.Gw, 11.55.Ds, 13.75.Lb