Re-evaluation of the isoscalar mixing angle within selected mesonic nonets

TL;DR

This paper re-evaluates the isoscalar mixing angles in mesonic nonets using mass relations and experimental data, compares results with theoretical models, and predicts decay behaviors to aid future experimental analysis.

Contribution

It provides a new re-evaluation of isoscalar mixing angles and quarkonia content using updated mass relations and experimental results, with decay predictions for validation.

Findings

Revised isoscalar mixing angles consistent with some models.

Predicted decay modes for isoscalar states.

Comparison of mixing angles across different models.

Abstract

Based on the relations from the meson-meson mass mixing matrix, the mixing angles of isoscalar state have been re-evaluated via mass relations and latest experimental results. The results in the present work are compared with the values from different theoretical models, meanwhile, the quarkonia content of isoscalar state are presented. In order to check the validity of analysis, some predictions on the decays of the isoscalar state are presented. These predictions may be useful for the phenomenological analysis for meson nonet in future experiments.