Disentangle the nature of resonances in coupled-channel models

TL;DR

This paper explores the nature of resonances in coupled-channel models, identifying potential baryonic and mesonic states with specific quantum numbers based on empirical data and effective Lagrangian interactions.

Contribution

It introduces a method to analyze resonances in coupled-channel models using on-shell approximation and effective Lagrangians, predicting new hadronic states.

Findings

Identification of several potential baryonic and mesonic states

Properties of these states are characterized for future experimental verification

Demonstrates the relevance of coupled-channel models in hadron spectroscopy

Abstract

We present several possible hadronic states found in coupled-channel models within the on-shell approximation. The interaction potential is constructed as a sum of the tree-level Feynman diagrams calculated with the effective Lagrangians. Based on the recent empirical data, we illustrate the possible existence of several baryonic and mesonic states with definite quantum numbers in the model. We give their properties for the purpose of further study and discuss the potential of finding them in future experiments.